Extract MP3 from Video
Pull the audio track out of your own clips — family events, travel videos, original recordings.
⚠️ Personal use only — copyright notice
This tool is intended for videos you own and have the rights to. The following are not allowed and may violate copyright law:
- Extracting audio from third-party content on YouTube, TV broadcasts, films, music videos, etc.
- Extracting and redistributing soundtracks, lectures, or music from videos you don't own
- Even for personal listening, extracting copyrighted audio without the rights holder's permission is generally illegal
The site does not upload your video; responsibility for use is entirely on the user.
Your video never leaves your browser. All processing happens locally via ffmpeg.wasm (WebAssembly).
First use: the video processing engine (ffmpeg.wasm, ~32MB) downloads automatically. Wi-Fi recommended. After that, it's cached and starts instantly.
📱 Mobile: we recommend videos at 720p or below and under 1 minute — for larger files, desktop Chrome is more reliable.
📱 Mobile: we recommend videos at 720p or below and under 1 minute — for larger files, desktop Chrome is more reliable.
Setting a bitrate higher than the source audio doesn't improve fidelity (it's capped by the source).
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Bitrate guide
| Bitrate | Estimated size (5 min) | Use case |
|---|---|---|
| 96 kbps | ~3.5 MB | Voice memos / lectures / recordings (speech only) |
| 128 kbps | ~4.7 MB | General — radio quality |
| 192 kbps | ~7 MB | Music — recommended (close to CD quality) |
| 256 kbps | ~9.4 MB | High-quality music (when the source is good) |
| 320 kbps | ~11.7 MB | MP3 max — small audible difference vs 256 |
Related tools
Legal vs illegal use
Legal: family events you recorded yourself, your own original videos, lectures or interviews where you are the recorder/participant.
Illegal: extracting BGM from third-party YouTube videos, ripping audio from TV broadcasts/films/music videos, extracting and redistributing audio from online courses (paid or free). Even personal listening typically requires permission from the rights holder.
Illegal: extracting BGM from third-party YouTube videos, ripping audio from TV broadcasts/films/music videos, extracting and redistributing audio from online courses (paid or free). Even personal listening typically requires permission from the rights holder.
Why MP3 only?
MP3 has the broadest compatibility (every car stereo, Bluetooth speaker, old MP3 player, smartphone). AAC is slightly better at the same bitrate but isn't supported on some older devices. WAV is lossless but ~10× the size — heavy for storage and sharing. We optimize for compatibility and ship MP3 only.
Can I close the page mid-process?
Closing the page cancels the in-progress job. The downloaded ffmpeg library stays cached, so the next visit reuses it without redownloading.
Frequently asked questions
When is this tool legal to use?
Only on videos you own (family events, travel clips, original content). Extracting audio from third-party works (YouTube, TV, films, music videos) is a copyright violation in most jurisdictions, even for personal listening. The site never uploads your video; usage responsibility is on the user.
Is my video uploaded to a server?
No. The video is processed entirely in your browser via ffmpeg.wasm (WebAssembly). The site operator never sees the contents. Only the ffmpeg library itself (~32MB) is downloaded on first use; the video itself never leaves your device.
How should I pick a bitrate?
Voice / lectures = 96~128 kbps (small). General music = 192 kbps (recommended). High-quality music = 256~320 kbps (small difference, larger file). Setting a bitrate higher than the source audio doesn't improve fidelity (it's capped by the source).
How long does it take?
MP3 encoding is much lighter than video compression — a 5-minute video takes 10 to 30 seconds on desktop Chrome. Mobile finishes in under a minute. Only the first run pays the ~32MB ffmpeg download.
Can it handle large videos (1GB+)?
On desktop Chrome, around 1 to 2GB. Mobile browsers may become unstable above ~500MB due to memory limits. For large videos, use Trim Video to cut just the audio segment first — much safer.
References
Last verified: 2026-05-05 / Powered by ffmpeg.wasm (WebAssembly) + LAME MP3 encoder.
- ffmpeg.wasm — official site (BSD/LGPL)
- LAME MP3 encoder — official site (LGPL)
- MP3 standard — ISO/IEC 11172-3, ISO/IEC 13818-3
- U.S. Copyright Office — copyright.gov
⚠️ For personal use only. Extracting audio from videos you don't own may violate copyright law.