Free Video to MP3 Converter Online
Extract the audio track from any video file and download it as WAV. Uses Web Audio API — no file upload, no server, 100% private and free.
Drop video here or browse
MP4, WebM, MOV, AVI · Audio track will be extracted
The audio will be extracted using the Web Audio API and saved as a WAV file. WAV is lossless — all browsers support decoding it. Processing time equals the video duration.
Decoding audio…
This may take a moment for long videos.
About Video to MP3
This tool decodes the video file's audio track using the browser's Web Audio API (AudioContext.decodeAudioData), then re-encodes the raw PCM audio data as a WAV file using JavaScript. WAV is an uncompressed, lossless format — the quality is identical to the original audio. The output file will be larger than MP3 but contains no quality loss. For browser-based processing, WAV is the most compatible format.
Frequently Asked Questions
MP3 encoding requires a license and complex codecs not available natively in all browsers. WAV uses uncompressed PCM which can be generated with pure JavaScript. The output is lossless — identical quality to the original audio.
The tool will show an error if no audio track is detected. Use the Video Muter to check if a video is silent, or the Thumbnail Extractor for silent videos.