Free tool
Keyboard Latency Test
Press keys on your physical keyboard. We measure the time from keydown to the next screen paint in this browser—useful for comparing setups, not raw USB lab numbers.
Last key press
—ms
Press keys to measure
Average
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Jitter
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Min
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Max
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Press keys to build a latency graph
Visual keyboard — Pick your OS layout in the dropdown so main keys, navigation cluster, and numpad labels match your keyboard.
Choose the layout that matches your OS keyboard. Main keys, navigation cluster (Insert/Home/arrows), and numpad labels follow the selected layout. Holding Shift previews shifted symbols on this layout.
Latency looks good?
Run a timed test to measure real WPM and accuracy—not just how fast keys appear on screen.
Run 1-minute typing testCheck every key first
A latency spike means little if a key never registers. Use the full keyboard checker before benchmarking.
Open keyboard testWhat this measures
- • Includes OS scheduling, browser JavaScript, and paint time—not switch debounce or monitor lag alone.
- • Wired USB usually beats Bluetooth for stable, lower jitter during timed tests.
- • Jitter (inconsistency) often matters more than a single lucky low number—aim for a tight graph.
- • Close heavy tabs and disable extensions if averages stay above ~30 ms on a modern PC.
Keyboard latency guides
Articles on input delay, polling vs end-to-end latency, Bluetooth vs wired, jitter, and repeatable browser tests—written for typists who use this latency sampler.
Keyboard Latency Test Online: What Milliseconds Mean for Typing BenchmarksLearn what a browser keyboard latency test measures, how to read average and jitter in milliseconds, when to trust the number, and how to pair sampling with a one-minute Type Faster benchmark.
How to Test Keyboard Latency in Five Repeatable StepsFive repeatable steps: stabilize power and RF, quiet the browser, sample keys, log jitter, then run a one-minute typing test so feel matches measured milliseconds.
Keyboard Latency Tester: Free Browser Tool Before You Buy HardwareCompare cables, receivers, and busy tabs with a free browser keyboard latency tester—transparent sampling without sketchy executables, plus what to log before timed typing tests.
Keyboard Polling Rate vs Latency for Typing Scores: Hz, Milliseconds, and Honest BenchmarksPolling rate in Hz is not end-to-end latency. Learn how each shows up in typing benchmarks, why Bluetooth can spike delay at high Hz, and how to pair the latency lab with a one-minute test.