Extract audio to MP3
Extract the audio track from any video file and save it as MP3. Runs entirely in your browser — your file is never uploaded to a server.
Your file is processed entirely in this browser tab. It is never uploaded, stored or seen by anyone.
To extract MP3 audio from a video, drop the file into the converter above and choose MP3. The audio stream is decoded and re-encoded to MP3 at 192kbps inside your browser, with no upload. Use it on video files you already have — recordings, exports, or your own downloads.
How it works
- Choose your file
Drag a file onto the converter, or click to browse. Nothing is uploaded — the file is read directly by your browser.
- Convert to MP3
Press Convert. FFmpeg runs as WebAssembly inside the tab and shows real progress as it works.
- Download the result
When it finishes, download the MP3 file. It is created in your browser's memory and never sent anywhere.
Your file never leaves your device — conversion runs entirely in this browser tab.
About MP3
Extracting MP3 from a video does two things: it discards the video stream entirely, and it re-encodes the audio into MPEG-1 Layer III. The first step is free and lossless. The second is not — MP3 is a lossy format, and if the source audio was already lossy (AAC in an MP4, Opus in a WEBM), you are compressing something that has already been compressed.
That double compression is why 192kbps is the default here rather than 128kbps. At 128 the artefacts of a second lossy pass become audible on cymbals and sibilance; at 192 they generally do not. If the source is a lossless WAV or FLAC, 320kbps is worth choosing.
If you only need the audio and do not specifically need MP3, converting to WAV avoids the second lossy pass entirely at the cost of a much larger file.
| Codec | MPEG-1 Audio Layer III |
|---|---|
| Container | MP3 |
| Typical bitrate | 128–320 kbps |
| Compatibility | Universal — every player and device made since the 1990s |
| Best for | Podcasts, music, voice notes, maximum compatibility |
Limits you should know about
Because conversion happens on your device rather than on a server, the ceiling is your browser's memory rather than our disk space. Files under 50MB work reliably everywhere. Desktop browsers stretch to roughly 200MB; mobile browsers, and iOS Safari in particular, cut out closer to 40MB.
Speed is the other trade. Running FFmpeg through WebAssembly is 5–10× slower than a desktop app, so a conversion that takes thirty seconds in a desktop application can take several minutes here. The converter shows a real estimate before it starts, and the tab has to stay open while it runs.
If your file is beyond those limits, trim it first, or use a desktop application such as HandBrake or FFmpeg directly — neither has a size ceiling.
Common questions
Does extracting audio reduce quality?
Re-encoding to MP3 is lossy, so yes. Extracting to WAV instead avoids a second lossy pass and preserves whatever quality the source audio had, but produces a file roughly ten times larger.
What bitrate should I choose?
192kbps suits almost everything and is the default. Choose 320kbps for music you care about or when the source is lossless. 128kbps is acceptable for speech and roughly halves the file size.
Can I convert a YouTube video to MP3 with this?
Not directly — this tool converts files you already have on your device; it does not fetch anything from YouTube. If the video is yours, download the original from YouTube Studio and convert that file here. See our guide on downloading your own YouTube videos.
Why is there no video in the output?
That is intended. The -vn flag strips the video stream so only audio remains, which is what makes the resulting file small enough to be useful as a podcast or music file.