LIBSONAREWebAssembly Audio Analysis Library

High-performance audio analysis in the browser

Extract BPM, key, chroma features, and more from audio files using WebAssembly. No server required.

  • Chroma / Spectral Analysis
  • Beat Detection
  • Key Estimation
  • Zero Dependencies
Drop audio file hereor click to select
SUPPORTED:MP3 WAV FLAC OGG