Audio Converter

Convert audio files or extract audio from video (MP4, MOV, WebM, etc.). WAV is lossless. MP3 is fully supported client-side using lamejs.

Upload Audio or Video File

Audio: MP3, WAV, OGG, AAC, etc.
Video: MP4, MOV, WebM, AVI — audio track will be extracted automatically

Uses the Web Audio API — works with pure audio files and video files (extracts the audio track). MP3 encoding uses the pure-JavaScript lamejs library.

Everything happens in your browser. No files are uploaded.