Free Spacebar Test - Speed Counter & Chatter Diagnostic

Free spacebar test & counter: measure spacebar speed (CPS), or diagnose double-spacing, chatter, stuck keys and missed presses with a live per-press log. Runs in your browser, no download.

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Spacebar Test & Diagnostic

Test spacebar speed, or diagnose double-spacing, chatter, stuck keys and missed presses.

Measure your spacebar speed, or find out why it double-spaces or misses presses.

Duration

10.0s

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CPS now

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Best CPS

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Avg CPS

Real presses

Test complete!

Presses

0.0

Per second

Per-press log threshold 80ms · timer ~?ms

#	Event	Time	Gap	Hold	Status
Waiting for input…

Diagnostics need a physical keyboard. Everything runs in your browser — nothing is uploaded.

Rate Spacebar Speed Test: 4.7 (14 ratings)

Spacebar Speed Test guide

How to use the Spacebar Speed Test accurately

Free spacebar test & counter: measure spacebar speed (CPS), or diagnose double-spacing, chatter, stuck keys and missed presses with a live per-press log. Runs in your browser, no download.

01 What Is a Spacebar Test? A spacebar test measures how your spacebar behaves. In Speed mode it counts how many times you can press the key in 5–60 seconds and shows your presses-per-second (CPS) rate — handy for gamers warming up or typists checking...

02 Spacebar Not Working or Double-Spacing? How to Diagnose It If your spacebar types two spaces from one press, that is almost always switch chatter (double-firing): a worn or dirty switch registers one tap as two electrical presses a few milliseconds apart.

03 How to Use the Spacebar Test Simple workflow

04 Spacebar Speed Ratings How does your presses-per-second score compare? Use this as a general benchmark — scores vary by keyboard type and test duration.

Spacebar Speed Test FAQ

Common spacebar speed test questions

Why does my spacebar type two spaces when I press it once?

Usually switch chatter (double-firing): a worn or dirty switch registers one press as two a few milliseconds apart. Use Diagnostic mode and tap normally - rows flagged CHATTER with a gap under about 30ms and a very short hold point to a bouncing switch rather than fast typing.

How do I test my spacebar for chatter or double-spacing?

Switch to Diagnostic mode and press the spacebar at a normal pace. The tool pairs each key-down with its key-up and flags any press whose gap from the previous one is below the chosen threshold (default 80ms) and whose hold is unusually short as suspected chatter, logging every press.

How do I know if my spacebar is missing presses?

Use Registration mode: pick a target like 20 and press the spacebar exactly that many times. The tool reports how many presses actually registered versus your target. If it registers fewer, the spacebar is dropping presses - the only reliable way to catch an intermittent or dead key.

What is a good spacebar speed?

Around 5-8 presses per second is average, 8-12 is fast, and 12-15 reaches competitive gamers and fast typists. Sustaining 15+ per second for 10 seconds or more is elite. Speed mode counts only real presses and ignores held-key auto-repeat, so the score stays accurate.

Does this spacebar test send my keystrokes anywhere?

No. Everything runs in your browser with JavaScript - your presses, timings, the log, and the CSV export are computed locally and never leave your device. There is no server, account, or tracking, and you can disconnect from the internet after the page loads and it still works.

Is the spacebar test free?

Yes. The spacebar speed test, the chatter diagnostic, the registration check, and the CSV export are all free with no signup or download. Pick a mode, press the spacebar, and read your results or download the log instantly.