About FastX

FastX is a small collection of free browser-based reflex and skill tests. Each test runs entirely in your browser — no install, no signup, no account.

Why this exists

There’s a long history of small reflex tools on the web: typing tests, click counters, reaction games. The best of them (Monkeytype, Human Benchmark) became staples. FastX is a modern take on the same idea: fast, clean, mobile-friendly, no clutter.

How scores are stored

Your best scores live in your browser’s local storage. Nothing is sent to a server. Clear your browser data and the scores reset.

Contact

Found a bug, want a new test added, or just want to say hello? Drop a line via the link in the footer.