Video to MP3 Converter — Extract Audio from Video
Free online video to MP3 converter: rip the audio from MP4, WebM, MOV and more as a high-quality MP3. Runs 100% in your browser — your video never leaves your device.
About Video to MP3 Converter
Pull the sound out of any video and save it as an MP3, without uploading the file. The conversion runs on a WebAssembly build of FFmpeg inside your browser tab, so even large or private videos never leave your device. Works with MP4, WebM, MOV, MKV, and most other formats your browser can read.
How to use Video to MP3 Converter
- Drop a video file (MP4, WebM, MOV, …) into the upload area.
- Click Process video — the audio track is extracted and encoded to MP3 locally.
- Preview the result with the built-in player, then download the MP3.
Extracting MP3 audio from video — privately
Why “video to MP3” deserves a local tool
Most video-to-MP3 sites are ad-heavy uploaders: your video goes to their server, sits there while it converts, and you hope they delete it. For a lecture recording, a family video, or anything unpublished, that is a bad trade.
This tool never uploads. The same FFmpeg that powers big converter sites runs here as WebAssembly in your tab, so extraction happens on your own hardware — and you can watch it work in the progress bar.
How the extraction works
A video file is a container with separate video and audio streams. Extraction simply demuxes the audio stream and re-encodes it to MP3 (the video stream is discarded entirely, which is why the output is small).
Because only the audio is re-encoded (not the video), conversion is much faster than a full transcode — usually well under the length of the clip.
Related tools
Need the other direction or more formats? The same engine powers our Video to MP4, Video to WebM, Video to GIF, and Video Cutter tools — and the audio tools can convert, trim, or boost the MP3 afterwards.
Frequently asked questions
Is the video uploaded anywhere?
No. The FFmpeg engine is compiled to WebAssembly and runs inside your browser. The video file is read from disk, the audio is extracted, and the MP3 is created — all locally, with no network requests.
Which video formats work?
Any format the bundled FFmpeg can read: MP4, WebM, MOV, MKV, AVI, and more. If the container has an audio track, it can be extracted.
What quality is the MP3?
The encoder uses VBR quality level 2 (roughly 190–250 kbps), which is transparent for most music and voice recordings.
Why is the first conversion slow?
The first run downloads the FFmpeg engine (a few MB, cached afterwards). After that, speed depends only on your device and the video length.
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