Audio Spectrum

Visualize audio with rounded gradient frequency bars.

Turn a local audio file into live frequency bars using Web Audio. Choose 8–128 rounded bars, a logarithmic or linear frequency scale, bass-to-treble range, centered or bottom alignment, and three gradient colors. Play a built-in demo, save a 1280×720 PNG, or record up to two minutes of video with audio. No upload or model download.

Processes your input on your device without uploading it. Libraries or models may need downloading. No site account is required.