Flashlight Tester

Test your device's flashlight with multiple modes and patterns

Permission Required

Camera access needed for flashlight control

Health Warning

Flashing lights may trigger seizures or discomfort in people with photosensitive epilepsy or other light-sensitive conditions.

If you feel unwell, experience dizziness, or discomfort while using flashing modes, please stop immediately.

If you are unsure whether it's safe for you, please do not use the flashing features.

Hardware Torch Mode

Using device flashlight

How to Use

Custom Morse Text

Enter text to flash in morse code

Only letters (a-z, A-Z) and spaces allowed

Go to Morse Code Translator

Flash Modes

  • Turn ON: Keeps flashlight on continuously
  • Turn OFF: Turns off the flashlight
  • Single Flash: One flash for 1.0 seconds
  • Flash Mode: Continuous flashing every 0.5 seconds
  • SOS in morse codeMode: SOS pattern (···---···)
  • Custom Morse: Flash text in Morse code (URL parameter)
  • Stop All: Stops any flashing mode

Controls & Features

  • Screen Flash Area: Visual feedback for all modes
  • Fullscreen Mode: Immersive flash experience
  • URL Parameters: ?text-to-morse=HELLO%20WORLD&repeat=false
  • Escape Key: Exit fullscreen or go to Sunrise/Sunset
  • Android: Uses camera torch API when available
  • iOS/Others: Screen flash fallback mode

Technical Details

SOS Pattern

The SOS pattern follows international Morse code standards:

  • • S: Three short flashes (0.5s each)
  • • O: Three long flashes (1.0s each)
  • • S: Three short flashes (0.5s each)
  • • Pattern repeats with 1.0s pause

Custom Morse Mode

Use URL parameters to auto-start custom text flashing:

  • • text-to-morse: HELLO%20WORLD (URL encoded text)
  • • repeat: true/false (default: true)
  • • Example: ?text-to-morse=SOS&repeat=false
  • • Supports: a-z, A-Z, and spaces only
  • • Dot: 0.5s flash, Dash: 1.0s flash

Browser Compatibility

Hardware flashlight control requires modern browsers with MediaDevices API and torch support. Fallback screen flash works on all devices.

Performance Notes

Flash intervals of 0.5s and 1.0s are optimized for most Android hardware. Very rapid toggling may trigger hardware protection.

Flashlight Tester Information

What is the flashlight tester tool?

The flashlight tester is a tool to test your device's hardware flashlight (torch) or screen flash with multiple modes including continuous, single flash, SOS patterns, and custom Morse code messaging.

Why does my device use screen flash instead of hardware flashlight?

Screen flash mode activates when your device doesn't support the camera torch API, which is common on iOS devices and some browsers. Android devices with modern browsers typically support hardware torch control.

How do I use the custom Morse code feature?

Enter text (letters and spaces only) in the custom Morse input field. The tool will automatically convert your text to Morse code and flash it. You can also use URL parameters like ?text-to-morse=HELLO to auto-start flashing.

What is the SOS mode pattern?

SOS mode flashes the international Morse code distress signal: three short flashes (S: ···), three long flashes (O: ---), and three short flashes (S: ···). The pattern repeats continuously until stopped.

Is it safe to use flashing modes?

Flashing lights can trigger seizures or discomfort in people with photosensitive epilepsy or light-sensitive conditions. If you experience dizziness, discomfort, or feel unwell, stop using the flashing features immediately.

Why do I need to grant camera permission?

Camera permission is required to access the device's hardware flashlight (torch) through the camera API. Without this permission, the tool falls back to screen flash mode. No photos or videos are captured.

Network Analysis

Website Status Checker
Check if a website is down for everyone or just you to ensure your site is always up and accessible to users.
What Is My IP Address?
Find out your IP address and get detailed IP information to help with network troubleshooting and security.
Internet Ping Test
Test the response time and connectivity of any server to ensure reliable network performance and troubleshoot connectivity issues.
DNS Lookup Tool
Look up DNS records and check domain configurations to troubleshoot network issues and improve website performance.
HTTP Request Tester
Free online HTTP request tester for external APIs. Test public REST APIs, send GET, POST, PUT, DELETE requests with custom headers and authentication.
HTTP Status Checker
Check the HTTP status code of any website to ensure it is working properly and accessible to users.
Meta Tag Analyzer
Analyze meta tags of any website to improve your SEO and search engine visibility.
MX Record Checker
Verify email server configurations and mail exchanger records to ensure your email is delivered reliably.
Page Load Time Tester
Measure how fast a webpage loads and analyze performance to improve your website loading speed.
Broken Link Checker
Find broken links on your website automatically to ensure your site is always up to date and user-friendly.
Memory Usage Tracker
Monitor memory usage of your web applications to optimize performance and ensure smooth operation.
SSL Certificate Checker
Check the SSL certificate of any website to ensure it is secure and protected.
Redirect Checker
Check the redirect chain of any website to ensure it is secure and protected.
Sitemap Viewer
Parse and analyze XML and TXT sitemaps to view URLs, metadata, search and filter results, and export data.

Management

To Do List
Try our project management tool to effortlessly manage your to-do lists, organize tasks, boost productivity, and stay on track with your daily goals.
Best Daily Planner
Try the best daily planner we believe to boost productivity with key features like to do list, time-blocking for daily planning.
Time Spent Tracker
Track your time spent on activities, tasks, and projects to help you stay on top of your schedule and improve your productivity.
Reminder Tool
Set browser notifications for reminders, tasks, and alerts to stay on top of your schedule.
Progress Tracker
Track and manage progress on multiple items with customizable categories, options, and completion percentages in a flexible grid interface.
Kanban Board
Visual project management tool to organize and track work through customizable workflow stages with drag-and-drop task management.
Scrum Board
Advanced project management with multiple board templates, team collaboration, analytics, and agile workflow support for effective sprint planning.
Habit Tracker
Track your daily habits, build streaks, and achieve your goals with our comprehensive habit tracker. Monitor progress, set reminders, and stay motivated.
My Passwords List
Securely store and manage your passwords locally in your browser with IndexedDB. Features search, categories, import/export, and strong password generation.
Expense Tracker
Track your expenses, manage categories, set budgets, and monitor your spending with our comprehensive expense tracking tool featuring reports and analytics.
Daily Checklist
Track your daily tasks with an easy-to-use checklist. Add, edit, and check off tasks as you complete them. Never miss a task with the outstanding items feature that shows unfinished tasks from previous days.
Online Diagram Editor
Create flowcharts, sequence diagrams, ER diagrams, and more with Mermaid.js. Live preview, export to SVG/PNG, multiple themes, and ready-to-use templates.
Mermaid Diagram to SVG
Convert Mermaid diagrams to SVG images online - batch convert multiple diagrams, download as ZIP, perfect for documentation and CI/CD pipelines.

Timers

Exercise Timer
Perfect interval timer for workouts, HIIT, Tabata, circuit training, and exercise routines with customizable duration and repetitions.
Interval Timer
Set up custom interval timers for workouts or tasks to help you stay focused and productive.
Pomodoro Timer
Stay productive with this customizable Pomodoro timer to help you focus and get more done in less time.
Stopwatch
Simple, accurate stopwatch for precise timing of any activity, workout, or event with easy-to-use controls.
Countdown Timer
Create countdown timers in hours, minutes, or seconds to track events and deadlines with precision and ease.
Event Countdown Generator
Create countdown timers for events, holidays, and deadlines with customizable options for name, date, time and end description.
Sunrise & Sunset Countdown
Countdown to sunrise and sunset times, helping you plan your day with accurate, real-time daylight tracking.
World Time Finder
Fullscreen world time displaying the current time for any selected timezone, with autocomplete search.
Tide Times
Countdown to high and low tide times, helping you plan your day with accurate, real-time tide tracking.
1 Minute Timer
Set a 1-minute timer for quick tasks, short breaks, meditation, or any activity that needs precise timing.
2 Minute Timer
Set a 2-minute timer for quick tasks, short breaks, meditation, or any activity that needs precise timing.
3 Minute Timer
Set a 3-minute timer for quick tasks, short breaks, meditation, or any activity that needs precise timing.
4 Minute Timer
Set a 4-minute timer for quick tasks, short breaks, meditation, or any activity that needs precise timing.
5 Minute Timer
Set a 5-minute timer for quick tasks, short breaks, meditation, or any activity that needs precise timing.
10 Minute Timer
Set a 10-minute timer for quick tasks, short breaks, meditation, or any activity that needs precise timing.
15 Minute Timer
Set a 15-minute timer for quick tasks, short breaks, meditation, or any activity that needs precise timing.
20 Minute Timer
Set a 20-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
25 Minute Timer
Set a 25-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
30 Minute Timer
Set a 30-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
35 Minute Timer
Set a 35-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
40 Minute Timer
Set a 40-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
45 Minute Timer
Set a 45-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
50 Minute Timer
Set a 50-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
55 Minute Timer
Set a 55-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
60 Minute Timer
Set a 60-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
90 Minute Timer
Set a 90-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
120 Minute Timer
Set a 120-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.
240 Minute Timer
Set a 240-minute countdown timer for longer tasks, workouts, cooking, or extended focus sessions.

Time Zones

World Time Zones
Find current time in cities and countries around the world with comprehensive timezone information.
Time zones Lookup
Find accurate timezone information for any location worldwide by city or region with reliable, up-to-date data.
MDT Timezone
Current time in Mountain Daylight Time (MDT) with customizable display options and fullscreen mode.
EST to MST Converter
Convert Eastern Standard Time (EST) to Mountain Standard Time (MST) with interactive time picker, conversion chart, and quick reference.
EST to MDT Converter
Convert Eastern Standard Time (EST) to Mountain Daylight Time (MDT) with interactive time picker, conversion chart, and quick reference. Perfect for transition period coordination with 1-hour time difference.
EST to EDT Converter
Convert Eastern Standard Time (EST) to Eastern Daylight Time (EDT) with interactive time picker and conversion chart. Understanding daylight saving time transitions in the Eastern timezone.
EST to AST Converter
Convert Eastern Standard Time (EST) to Atlantic Standard Time (AST) with interactive time picker, conversion chart, and quick reference. Perfect for Eastern US-Atlantic Canada coordination with 1-hour time difference.
EST to AKST Converter
Convert Eastern Standard Time (EST) to Alaska Standard Time (AKST) with interactive time picker, conversion chart, and quick reference. Perfect for Eastern US-Alaska business coordination with 4-hour time difference. Note: Alaska does not observe daylight saving time.
EST to BST Converter
Convert Eastern Standard Time (EST) to British Summer Time (BST) with interactive time picker, conversion chart, and quick reference. Perfect for transatlantic US-UK business and financial market coordination with 6-hour time difference. Essential for NYSE and London Stock Exchange traders.
MST to EST Converter
Convert Mountain Standard Time (MST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, and quick reference.
MDT to EST Converter
Convert Mountain Daylight Time (MDT) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Mountain-East Coast coordination during daylight saving time.
MDT to EDT Converter
Convert Mountain Daylight Time (MDT) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for coast-to-coast coordination between Mountain and East Coast during daylight saving time.
MDT to CDT Converter
Convert Mountain Daylight Time (MDT) to Central Daylight Time (CDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Mountain-Central region coordination during daylight saving time with minimal 1-hour time difference.
MDT to AST Converter
Convert Mountain Daylight Time (MDT) to Atlantic Standard Time (AST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Mountain-Atlantic Canada coordination with unique no-daylight-saving timezone.
MDT to AKST Converter
Convert Mountain Daylight Time (MDT) to Alaska Standard Time (AKST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Mountain-Alaska business and oil/gas industry coordination.
EST to PST Converter
Convert Eastern Standard Time (EST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, and quick reference.
EST to PDT Converter
Convert Eastern Time (EST/EDT) to Pacific Daylight Time (PDT) with interactive time picker, conversion chart, and quick reference.
PST to EST Converter
Convert Pacific Standard Time (PST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, and quick reference.
EST to CST Converter
Convert Eastern Standard Time (EST) to Central Standard Time (CST) with interactive time picker, conversion chart, and quick reference.
CST to EST Converter
Convert Central Standard Time (CST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, and quick reference.
CST to EDT Converter
Convert Central Standard Time (CST) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Central-East Coast coordination during daylight saving time.
CST to CDT Converter
Convert Central Standard Time (CST) to Central Daylight Time (CDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Essential for understanding daylight saving transitions in the Central region.
CST to AST Converter
Convert Central Standard Time (CST) to Atlantic Standard Time (AST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Central US to Atlantic Canada coordination and travel planning.
CST to AKST Converter
Convert Central Standard Time (CST) to Alaska Standard Time (AKST) with interactive time picker, conversion chart, FAQ section, and quick reference. Essential for Central US to Alaska business coordination and travel planning.
CST to PDT Converter
Convert Central Standard Time (CST) to Pacific Daylight Time (PDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Central US to West Coast coordination and Silicon Valley business scheduling.
CST to MDT Converter
Convert Central Standard Time (CST) to Mountain Daylight Time (MDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Understand the unique relationship between these same-offset timezones during different seasons.
CST to BST Converter
Convert Central Standard Time (CST) to British Summer Time (BST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Central US to UK business coordination, transatlantic meetings, and international planning.
MST to PST Converter
Convert Mountain Standard Time (MST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, and quick reference.
MST to PDT Converter
Convert Mountain Standard Time (MST) to Pacific Daylight Time (PDT) with interactive time picker, conversion chart, and quick reference. Learn about unique zero-hour timezone differences during seasonal transitions.
PST to MST Converter
Convert Pacific Standard Time (PST) to Mountain Standard Time (MST) with interactive time picker, conversion chart, and quick reference.
MDT to PST Converter
Convert Mountain Daylight Time (MDT) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Mountain-Pacific region coordination during seasonal transitions.
MDT to PDT Converter
Convert Mountain Daylight Time (MDT) to Pacific Daylight Time (PDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Mountain-Pacific region coordination during daylight saving time with only 1-hour time difference.
PST to MDT Converter
Convert Pacific Standard Time (PST) to Mountain Daylight Time (MDT) with interactive time picker, conversion chart, and quick reference. Perfect for Pacific-Mountain region coordination during seasonal transitions.
CST to MST Converter
Convert Central Standard Time (CST) to Mountain Standard Time (MST) with interactive time picker, conversion chart, and quick reference.
MST to CST Converter
Convert Mountain Standard Time (MST) to Central Standard Time (CST) with interactive time picker, conversion chart, and quick reference.
MDT to MST Converter
Convert Mountain Daylight Time (MDT) to Mountain Standard Time (MST) with interactive time picker, conversion chart, FAQ section, and quick reference. Essential for understanding daylight saving transitions in the Mountain region.
MST to MDT Converter
Convert Mountain Standard Time (MST) to Mountain Daylight Time (MDT) with interactive time picker, conversion chart, and quick reference. Understand daylight saving transitions in the Mountain region.
MST to CDT Converter
Convert Mountain Standard Time (MST) to Central Daylight Time (CDT) with interactive time picker, conversion chart, and quick reference. Perfect for cross-regional coordination during daylight saving season.
MST to EDT Converter
Convert Mountain Standard Time (MST) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, and quick reference. Essential for East Coast and Mountain region coordination.
MST to AST Converter
Convert Mountain Standard Time (MST) to Atlantic Standard Time (AST) with interactive time picker, conversion chart, and quick reference. Perfect for Pan-Canadian business coordination across western and eastern provinces.
MST to AKST Converter
Convert Mountain Standard Time (MST) to Alaska Standard Time (AKST) with interactive time picker, conversion chart, and quick reference. Ideal for coordinating between continental US and Alaska.
MST to BST Converter
Convert Mountain Standard Time (MST) to British Summer Time (BST) with interactive time picker, conversion chart, and quick reference. Essential for transatlantic business coordination between North America and the UK.
CST to PST Converter
Convert Central Standard Time (CST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, and quick reference.
PST to CST Converter
Convert Pacific Standard Time (PST) to Central Standard Time (CST) with interactive time picker, conversion chart, and quick reference.
PST to CDT Converter
Convert Pacific Standard Time (PST) to Central Daylight Time (CDT) with interactive time picker, conversion chart, and quick reference. Useful for understanding seasonal time differences.
PST to EDT Converter
Convert Pacific Standard Time (PST) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, and quick reference. Perfect for coast-to-coast US business coordination.
EST to UTC Converter
Convert Eastern Standard Time (EST) to Coordinated Universal Time (UTC) with interactive time picker, conversion chart, and quick reference.
UTC to EST Converter
Convert Coordinated Universal Time (UTC) to Eastern Standard Time (EST) with interactive time picker, conversion chart, and quick reference.
PST to UTC Converter
Convert Pacific Standard Time (PST) to Coordinated Universal Time (UTC) with interactive time picker, conversion chart, and quick reference.
UTC to PST Converter
Convert Coordinated Universal Time (UTC) to Pacific Standard Time (PST) with interactive time picker, conversion chart, and quick reference.
UTC to PDT Converter
Convert Coordinated Universal Time (UTC) to Pacific Daylight Time (PDT) with interactive time picker, conversion chart, and quick reference.
PST to PDT Converter
Convert Pacific Standard Time (PST) to Pacific Daylight Time (PDT) with interactive time picker, conversion chart, and quick reference.
PDT to PST Converter
Convert Pacific Daylight Time (PDT) to Pacific Standard Time (PST) with interactive time picker, conversion chart, and quick reference. Perfect for daylight saving time transitions.
PDT to MST Converter
Convert Pacific Daylight Time (PDT) to Mountain Standard Time (MST) with interactive time picker, conversion chart, and quick reference. Perfect for Pacific-Mountain region coordination.
PDT to MDT Converter
Convert Pacific Daylight Time (PDT) to Mountain Daylight Time (MDT) with interactive time picker, conversion chart, and quick reference. Perfect for Pacific-Mountain region coordination during daylight saving season.
PDT to EDT Converter
Convert Pacific Daylight Time (PDT) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, and quick reference. Perfect for coast-to-coast US business coordination.
PDT to CST Converter
Convert Pacific Daylight Time (PDT) to Central Standard Time (CST) with interactive time picker, conversion chart, and quick reference. Perfect for Pacific-Central region coordination.
PDT to CDT Converter
Convert Pacific Daylight Time (PDT) to Central Daylight Time (CDT) with interactive time picker, conversion chart, and quick reference. Perfect for Pacific-Central region coordination during daylight saving season.
PDT to AST Converter
Convert Pacific Daylight Time (PDT) to Atlantic Standard Time (AST) with interactive time picker, conversion chart, and quick reference. Perfect for Pacific-Atlantic Canada coordination.
PDT to AKST Converter
Convert Pacific Daylight Time (PDT) to Alaska Standard Time (AKST) with interactive time picker, conversion chart, and quick reference. Perfect for Pacific-Alaska coordination.
PDT to BST Converter
Convert Pacific Daylight Time (PDT) to British Summer Time (BST) with interactive time picker, conversion chart, and quick reference. Perfect for US West Coast to UK business coordination.
PDT to UTC Converter
Convert Pacific Daylight Time (PDT) to Coordinated Universal Time (UTC) with interactive time picker, conversion chart, and quick reference. Perfect for US West Coast to global coordination.
UTC to CST Converter
Convert Coordinated Universal Time (UTC) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference.
UTC to MST Converter
Convert Coordinated Universal Time (UTC) to Mountain Standard Time (MST) with interactive time picker, conversion chart, FAQ section, and quick reference.
UTC to EDT Converter
Convert Coordinated Universal Time (UTC) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, FAQ section, and quick reference.
UTC to IST Converter
Convert Coordinated Universal Time (UTC) to India Standard Time (IST) with interactive time picker, conversion chart, FAQ section, and quick reference.
UTC to CDT Converter
Convert Coordinated Universal Time (UTC) to Central Daylight Time (CDT) with interactive time picker, conversion chart, FAQ section, and quick reference.
CDT to EST Converter
Convert Central Daylight Time (CDT) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference.
CDT to EDT Converter
Convert Central Daylight Time (CDT) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Central-Eastern region coordination during daylight saving time with minimal 1-hour time difference.
CDT to CST Converter
Convert Central Daylight Time (CDT) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference.
CDT to PST Converter
Convert Central Daylight Time (CDT) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference.
CDT to PDT Converter
Convert Central Daylight Time (CDT) to Pacific Daylight Time (PDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Central-Pacific region coordination during daylight saving time with minimal 2-hour time difference.
CDT to AST Converter
Convert Central Daylight Time (CDT) to Atlantic Standard Time (AST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Central-Atlantic Canada coordination with 1-hour time difference.
CDT to AKST Converter
Convert Central Daylight Time (CDT) to Alaska Standard Time (AKST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Central-Alaska business coordination with 4-hour time difference.
CDT to BST Converter
Convert Central Daylight Time (CDT) to British Summer Time (BST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for transatlantic Central US-UK business coordination with 6-hour time difference.
EDT to CST Converter
Convert Eastern Daylight Time (EDT) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference.
EDT to PST Converter
Convert Eastern Daylight Time (EDT) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference.
EDT to UTC Converter
Convert Eastern Daylight Time (EDT) to Coordinated Universal Time (UTC) with interactive time picker, conversion chart, FAQ section, and quick reference.
EST to GMT Converter
Convert Eastern Standard Time (EST) to Greenwich Mean Time (GMT) with interactive time picker, conversion chart, and quick reference.
GMT to EST Converter
Convert Greenwich Mean Time (GMT) to Eastern Standard Time (EST) with interactive time picker, conversion chart, and quick reference.
GMT to PST Converter
Convert Greenwich Mean Time (GMT) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference.
GMT to CST Converter
Convert Greenwich Mean Time (GMT) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference.
GMT to MST Converter
Convert Greenwich Mean Time (GMT) to Mountain Standard Time (MST) with interactive time picker, conversion chart, FAQ section, and quick reference.
PST to GMT Converter
Convert Pacific Standard Time (PST) to Greenwich Mean Time (GMT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for US-UK business coordination.
PST to BST Converter
Convert Pacific Standard Time (PST) to British Summer Time (BST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for US-UK summer business coordination.
BST to EST Converter
Convert British Summer Time (BST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-US East Coast coordination during daylight saving time.
BST to EDT Converter
Convert British Summer Time (BST) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-US East Coast coordination during summer daylight saving time.
BST to CST Converter
Convert British Summer Time (BST) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-US Central region coordination during daylight saving time.
BST to CDT Converter
Convert British Summer Time (BST) to Central Daylight Time (CDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-US Central region coordination during summer daylight saving time.
BST to MST Converter
Convert British Summer Time (BST) to Mountain Standard Time (MST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-US Mountain region coordination during winter months.
BST to MDT Converter
Convert British Summer Time (BST) to Mountain Daylight Time (MDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-US Mountain region coordination during summer daylight saving time.
BST to PST Converter
Convert British Summer Time (BST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-US West Coast coordination during daylight saving time.
BST to PDT Converter
Convert British Summer Time (BST) to Pacific Daylight Time (PDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-US West Coast coordination during summer daylight saving time.
BST to AST Converter
Convert British Summer Time (BST) to Atlantic Standard Time (AST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-Atlantic Canada coordination during winter months.
BST to AKST Converter
Convert British Summer Time (BST) to Alaska Standard Time (AKST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-Alaska coordination during winter months.
BST to HST Converter
Convert British Summer Time (BST) to Hawaii Standard Time (HST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-Hawaii coordination. Hawaii does not observe daylight saving time.
BST to IST Converter
Convert British Summer Time (BST) to India Standard Time (IST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for UK-India business coordination. India does not observe daylight saving time.
EST to IST Converter
Convert Eastern Standard Time (EST) to India Standard Time (IST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for US-India business coordination.
CET to EST Converter
Convert Central European Time (CET) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for transatlantic coordination.
CET to PST Converter
Convert Central European Time (CET) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Europe to West Coast coordination.
CET to CST Converter
Convert Central European Time (CET) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Europe to Central US coordination.
CET to IST Converter
Convert Central European Time (CET) to India Standard Time (IST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Europe-India business coordination.
CET to MST Converter
Convert Central European Time (CET) to Mountain Standard Time (MST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Europe-Mountain region coordination.
CET to EDT Converter
Convert Central European Time (CET) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Europe-US East Coast coordination during daylight saving time.
CET to GMT Converter
Convert Central European Time (CET) to Greenwich Mean Time (GMT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Continental Europe-UK coordination with just 1-hour difference.
PDT to EST Converter
Convert Pacific Daylight Time (PDT) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for coast-to-coast coordination.
EDT to EST Converter
Understand the difference between Eastern Daylight Time (EDT) and Eastern Standard Time (EST). Interactive converter showing 1-hour time difference with daylight saving transition dates.
IST to EST Converter
Convert India Standard Time (IST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-US business coordination.
CEST to EST Converter
Convert Central European Summer Time (CEST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Europe-US business coordination during summer months.
CEST to PST Converter
Convert Central European Summer Time (CEST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Europe to West Coast business coordination during summer months.
CEST to UTC Converter
Convert Central European Summer Time (CEST) to Coordinated Universal Time (UTC) with interactive time picker, conversion chart, FAQ section, and quick reference. Essential for international coordination and working with UTC-based systems.
CEST to CST Converter
Convert Central European Summer Time (CEST) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Europe to Central US business coordination during summer months.
CST to IST Converter
Convert Central Standard Time (CST) to India Standard Time (IST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for US Midwest-India business coordination and outsourcing teams.
IST to CST Converter
Convert India Standard Time (IST) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-Central US business coordination and IT outsourcing teams.
PST to IST Converter
Convert Pacific Standard Time (PST) to India Standard Time (IST) with interactive time picker, conversion chart, and quick reference. Perfect for US-India business coordination and Silicon Valley to India tech partnerships.
IST to PST Converter
Convert India Standard Time (IST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-Silicon Valley tech company coordination.
IST to EDT Converter
Convert India Standard Time (IST) to Eastern Daylight Time (EDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-US East Coast business coordination.
IST to CDT Converter
Convert India Standard Time (IST) to Central Daylight Time (CDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-US Central region business coordination.
IST to PDT Converter
Convert India Standard Time (IST) to Pacific Daylight Time (PDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-Silicon Valley and West Coast tech company coordination.
IST to MST Converter
Convert India Standard Time (IST) to Mountain Standard Time (MST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-US Mountain region business coordination.
IST to MDT Converter
Convert India Standard Time (IST) to Mountain Daylight Time (MDT) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-US Mountain region summer business coordination.
IST to AST Converter
Convert India Standard Time (IST) to Atlantic Standard Time (AST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-Atlantic Canada business coordination.
IST to AKST Converter
Convert India Standard Time (IST) to Alaska Standard Time (AKST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-Alaska business coordination.
IST to BST Converter
Convert India Standard Time (IST) to British Summer Time (BST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for India-UK business coordination with excellent time overlap.
IST to UTC Converter
Convert India Standard Time (IST) to Coordinated Universal Time (UTC) with interactive time picker, conversion chart, FAQ section, and quick reference. Essential for international coordination and global business operations.
HST to EST Converter
Convert Hawaii Standard Time (HST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Hawaii-East Coast coordination and tourism businesses.
HST to PST Converter
Convert Hawaii Standard Time (HST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Hawaii-West Coast coordination and business scheduling.
HST to CST Converter
Convert Hawaii Standard Time (HST) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Hawaii-Midwest coordination and business operations.
HST to MST Converter
Convert Hawaii Standard Time (HST) to Mountain Standard Time (MST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Hawaii-Mountain region coordination and scheduling.
JST to EST Converter
Convert Japan Standard Time (JST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Japan-East Coast coordination and international business operations.
JST to PST Converter
Convert Japan Standard Time (JST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Japan-Silicon Valley coordination and tech business operations.
JST to CST Converter
Convert Japan Standard Time (JST) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Japan-Midwest coordination and business operations.
KST to EST Converter
Convert Korea Standard Time (KST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for South Korea-East Coast USA business coordination.
KST to PST Converter
Convert Korea Standard Time (KST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for South Korea-Silicon Valley tech business coordination.
KST to CST Converter
Convert Korea Standard Time (KST) to Central Standard Time (CST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for South Korea-Midwest USA business coordination.
KST to UTC Converter
Convert Korea Standard Time (KST) to Coordinated Universal Time (UTC) with interactive time picker, conversion chart, FAQ section, and quick reference. Essential for international business and global team coordination.
KST to CET Converter
Convert Korea Standard Time (KST) to Central European Time (CET) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for South Korea-Europe business coordination and international partnerships.
AEST to EST Converter
Convert Australian Eastern Standard Time (AEST) to Eastern Standard Time (EST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Australia-East Coast USA business coordination.
EST to AEST Converter
Convert Eastern Standard Time (EST) to Australian Eastern Standard Time (AEST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for US East Coast-Australia business coordination and international partnerships.
PST to AST Converter
Convert Pacific Standard Time (PST) to Atlantic Standard Time (AST) with interactive time picker, conversion chart, and quick reference. Perfect for Pacific West Coast-Atlantic Canada business coordination.
PST to AEST Converter
Convert Pacific Standard Time (PST) to Australian Eastern Standard Time (AEST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for US West Coast-Australia business coordination and Silicon Valley-Sydney operations.
AEST to PST Converter
Convert Australian Eastern Standard Time (AEST) to Pacific Standard Time (PST) with interactive time picker, conversion chart, FAQ section, and quick reference. Perfect for Australia-US West Coast business coordination and international partnerships.

Calculator

401(k) Calculator
Estimate your retirement savings with our comprehensive 401(k) calculator. Calculate projected retirement balance, early withdrawal costs, and maximize employer matching contributions.
Age Calculator
Calculate your age in years, months, days, hours, minutes, and seconds with our age calculator.
Annual Mileage Calculator
Calculate your annual mileage and estimate fuel costs with our easy-to-use Annual Mileage Calculator.
Average Calculator
Calculate the average (mean) and median of any set of numbers. Enter values separated by commas, spaces, or paste from spreadsheets. Get instant statistical analysis including sum, count, min, max, and range.
Area Calculator
Calculate the area of any shape instantly. Supports squares, rectangles, triangles, parallelograms, trapezoids, circles, and ellipses.
BMI Calculator
Calculate your Body Mass Index (BMI) and understand your weight category with our easy-to-use BMI calculator supporting both metric and imperial units.
Calorie Burned Calculator
Calculate calories burned during exercise and daily activities. Uses accurate MET values for over 40 activities including running, cycling, swimming, sports, and household tasks.
Erlang Calculator
Calculate call center staffing needs using Erlang B or Erlang C, factoring call volume, handling time, and service level to fine tune customer wait times.
IP Subnet Calculator
Calculate IPv4 and IPv6 subnets with CIDR notation. Determine network addresses, broadcast addresses, subnet masks, and host ranges for network planning.
Fuel to Distance Calculator
Calculate how far you can travel with a given amount of fuel, or determine how much fuel you need for a specific distance.
Paycheck Calculator
Easily estimate your take-home pay with our free Paycheck Calculator. Calculate net pay after taxes and deductions instantly.
Tip Calculator
Calculate tips and split bills easily. Perfect for restaurants, service providers, and group expenses with customizable tip percentages.
Day of the Year Calculator
Calculate the day of the year for any date with our easy-to-use tool.
Interest Calculator
Calculate compound interest growth with regular contributions, tax effects, inflation adjustment, and detailed yearly breakdowns for investment planning.
Compound Interest Calculator
Calculate compound interest with additional contributions and compare different investment scenarios with interactive charts.
EE Bond Calculator
Calculate EE bond maturity values, interest earned, and growth projections. Track current value with Treasury interest rates and early withdrawal penalties.
Savings Goal Calculator
Calculate how much money you need to contribute each month to reach your specific savings goal with compound interest calculations.
Loan Calculator
Calculate loan payments, total interest, and payoff scenarios for personal loans, auto loans, and mortgages. Compare loan options and analyze early payoff benefits.
Mortgage Calculator
Calculate monthly mortgage payments, PMI, amortization schedules, and analyze extra payments. Supports conventional, FHA, and VA loans with comprehensive cost analysis.
Mortgage Payoff Calculator
Calculate your mortgage payoff date and see how extra monthly payments can save you thousands in interest. Visualize your payoff timeline with detailed schedules.
GPA Calculator
Calculate your Grade Point Average with weighted and unweighted systems, semester GPA calculation, and target GPA planning for academic success.
UF GPA Calculator
Calculate University of Florida weighted GPA using Florida's grading system with AP, IB, AICE, Honors, and Dual Enrollment course bonuses for admissions.
Cumulative GPA Calculator
Calculate your cumulative GPA by combining previous semesters with new courses. Track your overall academic progress and plan future grades to achieve your goals.
Investment Return Calculator
Calculate returns on stocks, bonds, mutual funds, and other investments. Factor in dividends, fees, taxes, and analyze dollar-cost averaging scenarios.
Watts to kWh Calculator
Convert power in watts (W) to energy in kilowatt-hours (kWh). Calculate energy consumption, electricity costs, and environmental impact for appliances and devices.
Battery Backup Calculator
Calculate battery backup time and required capacity for UPS systems, off-grid power, and emergency backup solutions with comprehensive energy analysis.
Frequency to Wavelength Calculator
Convert frequency to wavelength using λ = c/f formula. Calculate electromagnetic wave properties for radio, microwave, and optical frequencies with different mediums.
Capacitor Color Code Calculator
Decode capacitor color bands to determine capacitance values, tolerance, and specifications. Supports 3, 4, and 5-band capacitors with visual color selection.
Pregnancy Due Date Calculator
Calculate pregnancy due dates from last menstrual period or conception date. Include trimester breakdowns, important milestone dates, appointment schedules, and fetal development information.
Body Fat Calculator
Calculate your body fat percentage using US Navy method and BMI method. Free body fat calculator with comprehensive results, ideal ranges, and health recommendations.
Cubic Yards to Tons Calculator
Convert cubic yards to tons for construction materials, soil, gravel, and more. Free calculator with material densities for accurate volume to weight conversion.
Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law. Free calculator with step-by-step solutions, formulas, Ohm's Law wheel, and educational content about electrical circuits.
Square Footage Calculator
Calculate area and square footage for rooms, houses, and irregular spaces. Support for different shapes (rectangle, circle, triangle), multiple rooms, and conversion between different area units.
Mixed Number Calculator
Calculate with mixed numbers and fractions. Add, subtract, multiply, and divide mixed numbers with step-by-step solutions, conversions between mixed and improper fractions.
Improper Fraction to Mixed Number Calculator
Convert improper fractions to mixed numbers with step-by-step solutions. Free calculator with detailed explanations, examples, and conversion process.
Mixed Number to Improper Fraction Calculator
Convert mixed numbers to improper fractions with step-by-step solutions. Free calculator with detailed explanations, examples, and educational content.
Decimal to Fraction Calculator
Convert decimal numbers to fractions and mixed numbers with step-by-step solutions. Supports repeating decimals, simplification, and detailed conversion process.
Partial Fraction Decomposition Calculator
Decompose rational functions into partial fractions with step-by-step solutions. Supports linear and quadratic factors for calculus, algebra, and integration problems.
Weight Loss Calculator
Calculate how long or how much exercise is needed to burn fat. Estimate time to lose 1 lb/1 kg with various activities and get personalized weight loss projections based on BMR and TDEE.
Daily Calorie Needs Calculator
Calculate your daily calorie requirements based on age, height, weight, sex, and activity level. Get personalized BMR and TDEE calculations for weight loss, maintenance, and weight gain goals.
Retirement Calculator
Plan retirement savings with calculations for 401(k), IRA, and other retirement accounts. Include employer matching, inflation adjustments, withdrawal strategies, and social security projections.
Break-Even Point Calculator
Calculate business break-even points considering fixed costs, variable costs per unit, and selling price. Include margin of safety calculations, target profit analysis, and sensitivity analysis for price changes.
YouTube Money Calculator
Calculate your YouTube earnings based on views and RPM (Revenue Per Mille). Estimate your income potential and understand how your video performance translates to actual revenue.
Amps to Watts Calculator
Convert amps to watts using the formula W = A × V. Support for DC, single-phase AC, and three-phase AC power systems with power factor adjustment.
Amps to Kilowatts Calculator
Convert amps to kilowatts using the formula kW = (A × V) ÷ 1,000. Support for DC, single-phase AC, and three-phase AC power systems with power factor adjustment.
Stoichiometry Calculator
Calculate stoichiometric relationships in chemical reactions. Parse balanced equations and determine molar ratios between reactants and products with molar mass calculations.
Sum Calculator
Calculate the total sum of any set of numbers. Enter numbers separated by commas, spaces, or paste from spreadsheets. Get instant results with sum, count, and average calculations.

Random

Random Word Generator
Generate random words for writing prompts, creative exercises, or games with categories like nouns, verbs, adjectives, and compound words. Bulk generation with export options.
Random 6 Digit Number Generator
Generate secure random numbers with customizable digit length (1 to 100,000 digits). Perfect for testing, security codes, games, and data generation using cryptographic randomization.
Random Number Between 1 And 50
Generate random numbers within a specific range. Perfect for games, lotteries, decisions, and random selections with cryptographic security.
Mcdonald or KFC
Generate random Mcdonald or KFC answers to help make quick decisions. Customize your options and let chance decide between two possibilities.
Pizza or Burger
Generate random Pizza or Burger answers to help make quick decisions. Customize your options and let chance decide between two possibilities.
Coffee or Tea
Generate random Coffee or Tea answers to help make quick decisions. Customize your options and let chance decide between two possibilities.
Yes or No
Generate random Yes or No answers to help make quick decisions. Customize your options and let chance decide between two possibilities.
Random Quote Generator
Get inspired with random quotes from famous people, organized by categories like motivation, wisdom, and success.
Secure Password Generator
Generate secure passwords and passphrases with various types of strong passwords, passphrases, random passwords and pin codes.
Random Color Generator
Generate random colors with hex codes and explore color theory with interactive color wheels showing complementary, triadic, analogous, and monochromatic colors.
Random Color Picker
Pick random colors from your custom palette. Add, edit, and delete colors, then randomly select one or more for your projects.
Random Security Check
Automatically run random security checks on your web applications to identify vulnerabilities and strengthen your site's overall protection.
Random Name Picker
Easily and randomly select names from any list for giveaways, meetings, or decision-making with our simple selection tool.
Random Decision Maker
Make decisions easily by entering your question and options. Let our random decision maker help you choose when you can't decide.
Random Team Generator
Generate random teams from a list of participants. Perfect for sports, group projects, or any activity requiring balanced team division.
Random List Shuffler
Shuffle any list of items into random order. Perfect for randomizing presentations, playlists, or task orders with visual animation and undo functionality.
JSON Randomizer
Generate random JSON data for testing, API development, and mock data creation. Customize data types, structure depth, templates, and export formats for developers and testers.

Engineering

Voltage Divider Calculator
Calculate output voltage, resistor values, power dissipation, and current for voltage divider circuits used in electronics and engineering.
Resistor Color Code Calculator
Decode resistor color bands to determine resistance values, tolerance, and power ratings for 4, 5, and 6-band resistors with visual representation.
Capacitor Value Calculator
Convert capacitor marking codes to values in pF, nF, and µF. Support for 3-digit codes, tolerance letters, and reverse lookup from value to code.
Wire Gauge Converter
Convert between AWG, millimeters, inches, square mm, square inches, and circular mils. Complete AWG chart with current ratings and resistance values.
Wave Frequency Calculator
Calculate wave frequency, wavelength, and speed using f=v/λ. Support for electromagnetic waves, sound waves, and custom mediums with unit conversions.
Fourier Series Visualizer
Interactive tool for visualizing Fourier series decomposition with real-time coefficient calculation, animation, and function approximation for signal analysis.
Sampling & Nyquist Calculator
Calculate Nyquist rate, check sampling sufficiency, analyze aliasing, and compute oversampling ratios for signal processing applications.
Beam Deflection Calculator
Calculate maximum deflection for simply supported and cantilever beams with point loads or distributed loads. Includes structural engineering formulas and design guidelines.
Bolt Torque Calculator
Calculate proper tightening torque for bolts based on material grade, preload requirements, and friction coefficients. Includes safety checks and engineering formulas.
Gear Ratio Calculator
Free professional gear ratio calculator for mechanical engineering. Calculate speed reduction, torque multiplication, compound gear trains, and mechanical advantage with real-time formulas and step-by-step solutions.
Molar Mass Calculator
Calculate molar mass and analyze chemical formulas with detailed elemental breakdown. Supports complex formulas, hydrates, parentheses, and provides mass percentages for chemistry applications.
Ideal Gas Law Calculator
Calculate pressure, volume, temperature, or moles using the ideal gas law (PV = nRT). Free calculator with multiple units, step-by-step solutions, and educational content for chemistry and physics.
Op-Amp Calculator
Calculate operational amplifier circuit parameters for inverting, non-inverting, differential, and integrator/differentiator configurations. Include gain, input/output impedance, and bandwidth calculations.
Heat Transfer Calculator
Calculate heat transfer rates for conduction, convection, and radiation. Include thermal resistance, heat exchanger analysis, and cooling calculations for engineering applications.
Transformer Turns Calculator
Calculate transformer turns ratios, primary/secondary voltages, currents, and power relationships. Include step-up/step-down calculations, impedance transformation, and efficiency calculations.
Power Electronics Calculator
Design and analyze DC-DC converters (buck, boost, buck-boost), calculate switching frequencies, inductor/capacitor values, and efficiency for power supply design.
Motor RPM Calculation
Calculate motor rotational speed from Hall-effect sensors, encoders, tachometers, and back-EMF measurements. Includes filtering, calibration, and performance analysis for motor control applications.
KVAR Calculator
Calculate required reactive power (KVAR) for power factor correction, capacitor bank sizing, and energy savings analysis for electrical systems and industrial applications.
HP to kW Motor Converter
Convert between horsepower (HP) and kilowatts (kW) for mechanical, electrical, and metric motor ratings with efficiency and load adjustments for engineering applications.
mAh to Wh Converter
Convert battery capacity between milliamp-hours (mAh) and watt-hours (Wh). Calculate energy storage for batteries, power banks, and electronic devices.
kW to kWh Converter
Convert kilowatts (kW) to kilowatt-hours (kWh) and calculate energy consumption from power and time. Estimate electricity costs for appliances and devices.
kWh to Watts Converter
Convert kilowatt-hours (kWh) to watts and calculate average power consumption from energy and time. Understand device power ratings and energy usage patterns.

Screensaver

Black Screen
A free backlight bleed tester to check dead pixels, backlight bleeding. Test monitor, laptop, mobile screen or other display issues.
White Screen
Quickly detect dead pixels, screen flicker, or backlight bleed on any monitor with our advanced display testing tool.
Red Screen
Spot dead pixels, color uniformity issues, or backlight bleeding fast-ensure your screen quality with our pixel checker.
Green Screen
Instantly check for dead pixels, backlight bleed, or display defects to guarantee flawless screen performance.
Blue Screen
Test your monitor for dead pixels, backlight bleeding, and color inconsistencies in seconds with our display diagnostic tool.
Yellow Screen
Identify dead pixels, uneven backlighting, or screen defects easily-optimize your monitor's display quality now.
Purple Screen
Find and fix dead pixels, backlight bleeding, or display issues using our comprehensive screen testing solution.
Cyan Screen
Ensure perfect screen quality by detecting dead pixels, backlight bleed, and other monitor issues instantly.
Orange Screen
Diagnose dead pixels, backlight bleeding, or display problems quickly-improve your monitor's performance and viewing experience.
Pink Screen
Uncover dead pixels, backlight bleed, or screen defects fast with our user-friendly display testing tool.
Brown Screen
Verify your screen for dead pixels, backlight bleeding, or color issues to maintain top display performance.
Gray Screen
Easily detect dead pixels, backlight bleed, and other screen issues to ensure your display's optimal quality.
Lime Screen
Quickly identify and troubleshoot dead pixels, backlight bleeding, and display defects for a flawless viewing experience.
Time Screen
Display the local time on your screensaver, automatically adjusting to your current time zone for accurate, real-time clock display.
Date Screen
A screensaver that displays the current date and time. Real-time clock display on your desktop or device.
Clock Screen
Elegant clock screensaver displaying the current time with customizable styles, perfect for adding a sleek look to your screen.
Snake Game
Watch an auto-playing snake game with AI pathfinding. The snake uses BFS algorithm to automatically navigate through obstacles and eat food in this interactive screensaver.

Utilities

Webcam Tester
Quickly test your webcam and verify camera settings to ensure optimal video quality and proper device functionality.
Microphone Test
Test your microphone and verify settings to ensure clear audio quality and proper device performance for free.
Flashlight Tester
Test your flashlight and verify settings to ensure optimal lighting and proper device functionality for free.
Morse Code Translator
Free online Morse code generator. Convert text to Morse code, e.g.: SOS in morse code, and vice versa.
Cookie Manager
View, edit, and manage your browser cookies effortlessly to control privacy, enhance security, and customize your browsing experience.
Credit Card Number Validation
Validate credit card numbers using the Luhn algorithm to ensure they are valid and secure.
Online Tally Counter
Free online tally counter with multiple counters, labels, and total calculation. Perfect for counting, tracking, and tallying various items.
Spacebar Counter
Simple spacebar counter - press spacebar or click + button to count. Perfect for counting repetitions, events, or any activity.
Password Strength Tester
Test your password strength and learn how secure your password is. Get real-time feedback and tips to create stronger passwords.
Website Screenshot
Generate screenshots of websites by entering a URL, with options for different device viewports (mobile, tablet, desktop) and full-page captures.
Color Blindness Simulator
Simulate how colors appear to users with different types of color blindness to ensure designs are accessible to users with color vision deficiencies.
Weight Tracker
Track and compare weight progress for multiple users. Add, edit, and delete weight records with visual progress reports and user comparison.

Printable

Printable Calendar
Generate and download printable monthly calendars for any month and year. Perfect for planning, organizing, and printing.
January 2025 Calendar
Generate and download printable January 2025 Calendar. Perfect for planning, organizing, and printing.
February 2025 Calendar
Generate and download printable February 2025 Calendar. Perfect for planning, organizing, and printing.
March 2025 Calendar
Generate and download printable March 2025 Calendar. Perfect for planning, organizing, and printing.
April 2025 Calendar
Generate and download printable April 2025 Calendar. Perfect for planning, organizing, and printing.
May 2025 Calendar
Generate and download printable May 2025 Calendar. Perfect for planning, organizing, and printing.
June 2025 Calendar
Generate and download printable June 2025 Calendar. Perfect for planning, organizing, and printing.
July 2025 Calendar
Generate and download printable July 2025 Calendar. Perfect for planning, organizing, and printing.
August 2025 Calendar
Generate and download printable August 2025 Calendar. Perfect for planning, organizing, and printing.
September 2025 Calendar
Generate and download printable September 2025 Calendar. Perfect for planning, organizing, and printing.
October 2025 Calendar
Generate and download printable October 2025 Calendar. Perfect for planning, organizing, and printing.
November 2025 Calendar
Generate and download printable November 2025 Calendar. Perfect for planning, organizing, and printing.
December 2025 Calendar
Generate and download printable December 2025 Calendar. Perfect for planning, organizing, and printing.
January 2026 Calendar
Generate and download printable January 2026 Calendar. Perfect for planning, organizing, and printing.
February 2026 Calendar
Generate and download printable February 2026 Calendar. Perfect for planning, organizing, and printing.
March 2026 Calendar
Generate and download printable March 2026 Calendar. Perfect for planning, organizing, and printing.