microphone

Camera Test

Developer Tools

Camera Test is a browser-based webcam tester that checks resolution, FPS, megapixels, brightness, microphone access, and more with no download or sign-up.

How to Whistle

Audio

How to Whistle is a free web-based practice tool for learning whistling in tune. It lets you play along with songs, see your pitch live, test your range, and compare scores on daily challenges and leaderboards.