Free engineer tool

Jitter Test

Measure how much your connection's round-trip time varies, the single biggest cause of stutter and buffering on a live stream. Runs in your browser. No signup required.

Connection

Connection jitter

How much the round trip to the test server varies, over forty timing probes. HTTP round-trip jitter, not media-path jitter: enough to catch an unstable link.

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Jitter
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Spread
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Latency
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Samples
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No measurement yet. Forty timing probes, usually under a minute. No account needed.

Your runs of this tool

Jitter is graded as the mean change between consecutive round trips, the same as the speed test. Timing wobble the encoder cannot buffer away; the row above shows what the session's check needs.

What to do next

Test the next thing

Jitter is the failure a bandwidth test hides: steady average, unusable stream.

Packet Loss Test. Measure packet loss in your browser. The #1 cause of stuttering, frozen, and dropped live streams.

Run Packet Loss Test

The rest of the toolbox

11 free tests grouped by the job you arrived with: your connection, the network path, the stream setup, the programme timing.

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