Network Jitter Test
Measure how stable your internet connection is. We send 25 samples to our server, then calculate your latency variation, average ping, and packet loss.
About the Network Jitter Test
Jitter is the variation in delay between packets travelling across a network. A connection can have a low average ping yet still suffer from high jitter, which is often why VoIP calls cut out, video calls freeze, and online games feel laggy even on a "fast" connection.
This tool sends 25 lightweight HTTPS requests from your browser to our server over roughly 5 seconds. For each sample we measure the full round-trip time, then calculate jitter as the average absolute difference between consecutive samples. We also report min/max/average ping, standard deviation, and packet loss.
Because the test runs entirely in your browser over HTTPS, results reflect your real-world connection quality including Wi-Fi, your ISP, and any network middle-boxes along the way.
How to Use the Jitter Test
- 1 Close bandwidth-heavy apps (streaming, cloud backup, large downloads) for a clean baseline.
- 2 Click Start Jitter Test. The test takes about 5 seconds.
- 3 Watch each sample appear in real time on the chart. Red bars indicate packets that didn't return in time.
- 4 Review the summary — focus on jitter and packet loss if you use VoIP, video calls, or online gaming.
- 5 Run it again on Wi-Fi vs Ethernet, or during different times of day, to spot patterns and bottlenecks.
Jitter Quality Guide
Jitter Test FAQ
What is network jitter?
Network jitter is the variation in delay between packets arriving at their destination. Even if your average ping is low, large variations (high jitter) cause audio dropouts, video freezing, and lag in real-time applications like VoIP, video calls, and online games.
What is a good jitter value?
Under 10ms is excellent for gaming, VoIP, and video calls. 10–30ms is generally acceptable for most uses. 30–50ms may cause noticeable quality issues in real-time applications. Above 50ms typically produces audible and visible problems.
How is jitter different from ping?
Ping (latency) measures how long a single packet takes to travel to a server and back. Jitter measures the variation between ping values over multiple samples. Low ping with high jitter is worse for real-time use than slightly higher ping with consistent timing.
What causes high jitter?
Common causes include network congestion, wireless interference, overloaded routers, poor-quality cables, ISP routing changes, and too many devices competing for bandwidth. Switching from Wi-Fi to Ethernet often reduces jitter dramatically.
How do I reduce jitter on my connection?
Use a wired Ethernet connection instead of Wi-Fi, close bandwidth-heavy applications (streaming, downloads, backups), enable QoS on your router to prioritise real-time traffic, restart your router, update network drivers, and contact your ISP if problems persist.
What is packet loss and why does it matter?
Packet loss occurs when data packets fail to reach their destination. Even 1–2% loss can cause audio cut-outs in calls and stuttering in games. Persistent loss usually indicates a problem with your local network, Wi-Fi signal, or your ISP.
Pro Tips
- • Run the test 2–3 times at different moments — jitter can fluctuate with network load.
- • Compare Wi-Fi vs Ethernet results to see how much your wireless connection adds.
- • Test while streaming or downloading to simulate real congestion conditions.
- • For gaming and VoIP, consistency matters more than raw speed — aim for jitter under 10ms.
- • Browser-based tests measure full round-trip over HTTPS, so results include TLS and app overhead.