Random Letter Generator

Generate secure random letters for games, teaching, writing prompts, test data, classroom activities, and alphabet practice.

Generator Settings

Generate 1 to 5,000 letters.

Your Random Letters

Generated locally in your browser with crypto.getRandomValues.

Click generate to create random letters.

0
Letters
26
Pool size
Yes
Repeats
A
Case

Games & Draws

Pick random alphabet letters for word games, classroom draws, bingo calls, and challenge prompts.

Testing Data

Create random strings for mock data, quick form testing, placeholder identifiers, and QA workflows.

Learning Letters

Generate alphabet practice sets for handwriting, phonics, spelling activities, and memory exercises.

About Random Letter Generator

The Random Letter Generator picks letters from the English alphabet using the Web Crypto API for cryptographically strong, uniformly distributed randomness. Choose uppercase A-Z, lowercase a-z, or mixed case; allow repeats or shuffle a unique set; exclude ambiguous letters like I, L, and O; or switch on a pronounceable mode that alternates consonants and vowels for readable strings. Every generation happens locally in your browser — settings and history live only on your device. Free, fast, and useful for games, classrooms, naming, mock data, and creative prompts.

How to Use Random Letter Generator

  1. 1.Set how many random letters you want — from 1 to 5,000.
  2. 2.Pick a case — uppercase, lowercase, or mixed.
  3. 3.Toggle options: allow repeats, exclude ambiguous letters, pronounceable mode, or grouping with spaces.
  4. 4.Click Generate Letters, then Copy or Download your result.

Common Use Cases

  • •Word games — Scattergories, Pictionary, charades, or "name something starting with…" prompts.
  • •Classroom alphabet practice, phonics drills, and handwriting exercises.
  • •Random initials for fictional character names or worldbuilding.
  • •Mock data for forms, QA test fixtures, and placeholder identifiers.
  • •Bingo-style letter calls and creative writing constraints.
  • •Memory training and spelling-bee warmups.

Random Letter Generator FAQ

Common questions about generating random letters, shuffling the alphabet, and using the result in games and tests.

Frequently Asked Questions

What is a random letter generator and how does it work?

A random letter generator picks one or more letters from the alphabet at random. This tool builds a pool from your settings (uppercase A-Z, lowercase a-z, or mixed case, with or without ambiguous letters like I, L, O), then draws letters using the Web Crypto API (crypto.getRandomValues) for strong, uniform randomness. It runs entirely in your browser — nothing is sent to a server.

Is this random letter generator truly random?

Yes. It uses crypto.getRandomValues with rejection sampling so every letter in the pool has an exactly equal probability of being chosen. This is much stronger than Math.random and is suitable for fair games, classroom draws, and any situation where bias would be a problem. It is not a cryptographic key generator, but the randomness source itself is cryptographically secure.

How do I generate a single random letter?

Set the number of letters to 1, pick the case (uppercase, lowercase, or mixed), and click Generate Letters. You can also click the "1" quick-pick button. Tap Copy to put the letter on your clipboard.

Can I generate the alphabet in random order?

Yes. Set the number of letters to 26, turn off "Allow repeated letters", and pick uppercase or lowercase. Each letter A-Z (or a-z) appears exactly once, in a uniformly random order. Use 52 with mixed case to shuffle both alphabets together.

What does "exclude ambiguous letters" mean?

Some letters look very similar to digits or to each other in many fonts — capital I and lowercase l can be mistaken for the digit 1, and capital O for the digit 0. Toggling "Exclude ambiguous letters" removes I, L, O, i, l, and o from the pool, which makes random codes easier to read aloud or print on paper.

What are pronounceable random letters good for?

When pronounceable mode is on, the generator alternates consonants and vowels so the result reads like a made-up word (e.g. "BAREKO" instead of "TZQXJK"). They are great for memorable names, fictional places in worldbuilding, password mnemonics, and child-friendly classroom prompts.

How many random letters can I generate at once?

You can generate up to 5,000 letters in a single batch. For very large strings, enable "Group with spaces" so they remain readable, then copy or download as a .txt file.

Is my data private?

Yes. Generation happens entirely in your browser — no input or output ever leaves your device. Your letter count, case, and recent generations are saved to local storage on your machine only, and you can clear them at any time with the Clear button.

Pro Tips

  • • Disable repeats and set count to 26 for an instant shuffled alphabet — perfect for classroom letter draws.
  • • Pair pronounceable mode with a 6-letter count for memorable usernames or character names.
  • • Exclude ambiguous letters when generating codes you will read aloud or print on small labels.
  • • Group with spaces every 4 letters to make long strings easier for kids and adults to copy by hand.

Tips for Getting the Most From Random Letters

Pick the right pool. Uppercase only is best for visual prompts and printed worksheets; lowercase suits handwriting practice; mixed case (52 letters) is good for codes and stronger random IDs. Pronounceable mode trades randomness for readability — use it when humans need to remember the result.

Combine tools for richer prompts. Pair this with the random word generator for vocabulary games, the decision wheel for picking categories, or the random number generator when you need a letter and a number together.

Watch out for ambiguous letters. If a random code will be read aloud, printed in a small font, or scanned by humans, switching on "Exclude ambiguous letters" prevents confusion between I/L/1 and O/0.

Generate the alphabet in random order. Set count to 26, disable repeats, and you have an instant random alphabet — useful for lesson plans, lottery-style draws, or shuffling team names.

Bulk generate then chunk. For test data, generate a long string with grouping enabled — every space-delimited group is a small random ID, ready to paste into a CSV or fixture file.