Utilitaires

Test your left and right audio channels independently to check speaker or headphone balance.

Pick a color or convert between HEX, RGB, and HSL instantly.

Fill your screen with solid colors to quickly spot dead or stuck pixels.

Generate a continuous tone at a precise frequency with waveform and volume control.

Test every key on your keyboard with a live interactive visual layout.

Turn your screen into a fullscreen scrolling banner — big text, marquee, and neon effects for concerts, events, and signage.

Instantly view your screen resolution, DPI, color depth, and display information.

Generate strong, random passwords with a cryptographically secure generator and a live strength meter.

Turn any text or URL into a downloadable QR code — customizable colors and error correction.

Test your display's color accuracy and uniformity with solid color and gradient panels.

Test your speakers or headphones with tones, a bass sweep, a left/right stereo check, and a distortion test.

Convert length, weight, and temperature values between common metric and imperial units.

Strip tracking parameters, UTM codes, and unwanted query tokens from web links.