Most click-speed testers online are built around the mouse. I wanted something that measured spacebar speed specifically, since that's what matters for a lot of gamers — Minecraft PvP in particular, where spacebar timing is a real factor.
What it does
Spacebar CPS Test lets you pick a preset timer (1, 5, 10, 30, 60 seconds) or set a custom duration up to 600 seconds, then tracks your presses in real time: total presses, average CPS, and best 1-second burst, plus a chart of your speed over the test.
A few things I had to think through
Debounce and timing precision. Getting an accurate press count means handling keydown events carefully — browsers don't guarantee perfectly uniform timing, so smoothing that out mattered more than I expected going in.
Burst vs sustained speed. A 1-second score and a 60-second score tell you very different things. Most people's "peak" number is a lot higher than what they can actually sustain, and I wanted the tool to make that distinction visible rather than just showing one number.
Keeping it simple. No sign-up required to use it. An optional free account lets you save scores and show up on a live leaderboard, but the core test works instantly for anyone.
You can try it here: spacebarcpstest.com
Curious if anyone else here has built something similar, or has thoughts on more precise ways to measure input timing in the browser — always interested in tightening this up further.
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