Device-Test — Privacy-first browser diagnostics
device-test.com
Developer ToolsDevice-Test is a privacy-first alternative to separate microphone, webcam, speaker, display, keyboard, and sensor test sites.
About
Device-Test — Privacy-first browser diagnostics
Device-Test brings practical browser hardware diagnostics into one free, accountless workspace. Instead of opening separate sites for a microphone check, webcam preview, speaker test, screen-sharing trial, display inspection, keyboard check, gamepad input, sensor status, and network readiness, users can troubleshoot these capabilities from a single website.
Captured microphone, camera, and screen data is processed locally in the browser rather than uploaded to Device-Test servers. Tests use native Web APIs and request permissions only when the user starts a relevant check. This makes the toolkit useful before online meetings and recordings, during device troubleshooting, and for developers validating browser compatibility.
The service runs on the web, requires no installation or signup, and includes clear guidance for permission and hardware problems. It is free to use.