Music Visualizer
Turn any track into living visuals. Play a file, switch on your mic, or hit the demo, then pick from 26 reactive, ambient and code-style visualizers — from spectrum and waveform to Aurora and Silk Flow, plus developer-style data views. Everything runs in your browser, so your audio is never uploaded.
Tip: drag an audio file straight onto the stage, or press F for fullscreen. Use the microphone for live instruments and ambient sound.
How it works
Your audio is fed into the Web Audio API's AnalyserNode, which runs a Fast Fourier Transform over a 2048 sample window about 60 times a second. That produces 1024 frequency bins from deep bass to bright treble. Each style maps those bins to motion: a low band detects beats, while mid and high bands drive size, brightness and speed, and a smoothed loudness with a fast attack and slow release makes the visuals snap on a hit and then ease back down. It is all drawn on a single HTML5 canvas with zero external libraries, so it stays small, fast and completely private.
Pick any style from the Reactive, Ambient or Code & Data groups, choose a palette, and use the sensitivity slider plus the Meter, Mirror and Grain toggles to set the mood. You can play a file (MP3, WAV, OGG, M4A and more), use your microphone for live sound, or run the built-in demo. Your audio is analyzed live in your browser and is never recorded or uploaded, and the Copy link button saves your exact setup in a shareable URL.