📈 Jitter Test
Jitter measures how much your ping varies from one moment to the next — low jitter means a smooth, stable connection.
About Jitter Test
Jitter is the variation in ping from one request to the next, not the ping value itself. This tool sends repeated timed requests to a test server and measures how much the round-trip time fluctuates between them, then reports that variation as a single jitter figure in milliseconds. A connection can have a perfectly reasonable average ping and still suffer from high jitter if that ping is unstable — swinging between 20ms and 80ms — which is often the more disruptive problem in practice.
High jitter is the usual culprit behind audio that cuts in and out on calls, video that stutters despite a strong download speed, or games where movement feels inconsistent rather than uniformly slow. Real-time applications buffer a small amount of data to smooth out normal network delay, and jitter above what that buffer can absorb causes the glitches and dropouts people notice, even when overall throughput looks fine.
Wi-Fi is a common source of jitter because radio interference, signal strength changes as devices move, and contention with other wireless devices all cause inconsistent delay in a way wired Ethernet generally doesn't. If jitter is consistently high, testing over a wired connection is one of the fastest ways to tell whether the issue is your Wi-Fi environment or something further upstream.
Frequently asked questions
What is jitter?
Jitter is the variation in latency (ping) over time. Even if your average ping is low, high jitter can cause choppy video calls, audio glitches, or lag spikes in games.
What's a good jitter value?
Under 5ms is great, 5–15ms is acceptable for most uses, and above 30ms can start to noticeably affect calls and real-time gaming.
How is jitter calculated?
It's typically the average difference between consecutive ping measurements — this tool takes a series of round-trip time samples and reports how much they vary from one sample to the next.
Can a good router reduce jitter?
Yes. A router with better Wi-Fi chipsets, less interference on its channel, and QoS (quality of service) settings that prioritize real-time traffic can meaningfully reduce jitter compared to an older or overloaded router.
Does a wired connection eliminate jitter?
It reduces it substantially but doesn't guarantee zero — jitter can still occur from congestion on your ISP's network or the test server's own load, just far less often than over Wi-Fi.