Is my video uploaded anywhere?

No. ffmpeg.wasm processes your video entirely inside your browser. Nothing is transmitted to any server.

Does it work on mobile?

Yes. Works on iPhone Safari and Android Chrome without installing any app.

Does audio extraction re-encode the audio?

For MP3/OGG/WAV output, the audio is re-encoded. For M4A from an MP4 source, the AAC track is remuxed without re-encoding — this is near-instant.

Will WAV files be very large?

Yes — uncompressed audio at 44.1 kHz, 16-bit, stereo is about 10 MB per minute. Use WAV only when you plan to edit further; pick MP3 or M4A for everyday listening and sharing.

Extract Audio (MP3, M4A, OGG, WAV)

Pull the audio track from any video and download it as MP3, M4A, OGG, or WAV.

100% client-side · no upload

Video file (MP4, WebM, MOV…)

Settings Output format

Load a file to begin.

How to use

Choose your video file. Most common video formats (MP4, WebM, MOV, AVI, MKV) are accepted.
Select the output audio format. MP3 for universal compatibility; M4A for fast lossless remux from MP4; WAV for uncompressed editing.
Click Extract audio and download the audio file.

Related tools

More ways to use this tool

Frequently Asked Questions

Is my video uploaded anywhere?: No. ffmpeg.wasm processes your video entirely inside your browser. Nothing is transmitted to any server.
Does it work on mobile?: Yes. Works on iPhone Safari and Android Chrome without installing any app.
Does audio extraction re-encode the audio?: For MP3/OGG/WAV output, the audio is re-encoded. For M4A from an MP4 source, the AAC track is remuxed without re-encoding — this is near-instant.
Will WAV files be very large?: Yes — uncompressed audio at 44.1 kHz, 16-bit, stereo is about 10 MB per minute. Use WAV only when you plan to edit further; pick MP3 or M4A for everyday listening and sharing.

Last updated: 2026-05-20 By jarvisbox