CapyToolkit
🎁FREECapyToolkit is a growing collection of free, privacy-first browser tools. Among its 50+ tools is a set of hardware testers for anyone who just bought a controller, a mouse, a monitor, or a microphone and wants to know it works as advertised. The gamepad tester shows stick drift and dead zones, the mouse tester measures polling rate and input lag, and the display suite checks dead pixels and flicker. Webcam tools analyze lighting, framing, and A/V sync, the microphone tester measures noise floor and latency, the speaker sweep finds resonances, and a MIDI tester times keyboard latency. Everything runs in the browser with no driver or install, and camera and microphone data stay on your device. The same site also offers developer, security, audio, math, and personal tools. It installs as an app, ships on the Microsoft Store, and works offline once installed. Always free, no account.
✨Key Features
- ▸Gamepad and joystick drift tester with dead zone readout
- ▸Mouse polling rate and input lag tester
- ▸Dead pixel and flicker test suite for monitors
- ▸Webcam lighting, framing, and A/V sync checks; microphone noise and latency tests
- ▸Speaker frequency sweep and MIDI keyboard latency tester
- ▸Part of 50+ free browser tools, all client-side, no account, works offline once installed