About CPS Tester

CPS Tester is a free, browser-based platform for testing clicking speed, mouse performance and gaming reflexes. It started with a single goal: build a click speed test that's fast, accurate and genuinely pleasant to use, instead of a bare calculator bolted onto a page full of ads.

What we test

The platform currently measures clicks per second across several techniques (standard clicking, jitter, butterfly, drag and Kohi-style clicking), along with mouse button responsiveness, double-click detection, scroll activity, keyboard response, spacebar speed, reaction time and aim accuracy. Every test runs entirely in your browser — nothing is installed, and nothing but your test results ever needs to be measured.

Why browser-based testing

Testing directly in the browser means anyone can check their clicking speed or reaction time in seconds, on any device, without installing anything. It does have real limits: browser timing, JavaScript event handling and operating system input queues all introduce a small amount of overhead compared to raw hardware measurement. We built the test engine to minimize that overhead — using the high-resolution performance.now() timer and measuring actual elapsed time rather than assuming a nominal duration — but we don't claim browser-based results are laboratory-grade hardware measurements, and we won't pretend otherwise.

No accounts, no clutter

You don't need to sign up to use any test on this platform. Your personal bests, level and achievements are saved locally in your browser. The interactive test is always the main focus of every page — informational content sits below it, not on top of it.

What's next

This platform is under active development. Phase 1 covers the core CPS testing experience end to end; Phase 2 adds advanced click techniques (jitter, butterfly, drag, Kohi); Phase 3 expands into a full gaming test suite covering mouse, keyboard, reaction and aim testing. Future plans include optional accounts for cloud-synced progress and a validated global leaderboard — we'll only claim leaderboard rankings are meaningful once the anti-cheat and validation behind them can actually back that up.