Converters Video to MP3 converter
Extract the soundtrack from MP4, MOV, MKV, AVI or WebM and save it as MP3, all inside your browser.
192 kbps is transparent for music. 128 is plenty for speech.
Drag files here, or
Converted to MP3 on your device. The converter itself is a 9.8 MB download, once.
Ready. Runs locally on your device.
Your files stay on your device. The tool works directly in your browser, using your device to process your files. Nothing is sent to our servers, and we never receive, store, or see your files or figures.
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Cite this page
Reembun. (2026, August 12). Video to MP3 converter. https://reembun.com/video-to-mp3
How to use it
Add the video
Any format your browser can read, including MP4, MOV, MKV and WebM. Several at once is fine.
Wait for the engine once
The first run downloads the converter and keeps it, so later extractions begin without the wait.
Set the bitrate
128 kbps suits speech, 192 kbps suits music. The video track is discarded either way.
Download the MP3
One file downloads on its own, a batch comes back as a ZIP, and the video never leaves your device.
One page for every container
MP4, MOV, MKV, AVI, WebM and the rest are all wrappers. Inside each is an audio stream, encoded with AAC, MP3, Opus, Vorbis, AC-3 or something older.
Extraction ignores the wrapper. The audio stream is located, decoded from whatever it happens to be, and re-encoded as MP3. That is why one page covers every video format rather than needing a separate tool for each. The container genuinely does not matter.
| Video format | Audio usually inside |
|---|---|
| MP4, MOV | AAC |
| MKV | AAC, Opus, FLAC, AC-3 |
| WebM | Opus or Vorbis |
| AVI | MP3 or AC-3 |
| WMV | WMA |
Why it is fast, and gets so much smaller
A video file is overwhelmingly picture. Discarding it is where both the speed and the size reduction come from.
| Source | Typical MP3 at 128 kbps |
|---|---|
| 1 GB, 1-hour lecture recording | 57 MB |
| 4 GB, 2-hour MKV | 115 MB |
| 300 MB, 20-minute screen recording | 19 MB |
Because no video frames are decoded, resolution has no effect on how long it takes. A 4K file and a 360p file of the same length finish in the same time.
What people use it for
- Lectures and courses. Listening on a commute instead of watching at a desk.
- Transcription. Speech-to-text services almost all take audio only.
- Interviews, meetings and calls recorded as video where only the words matter.
- Music from a live recording or a concert clip.
- Language practice, where a film’s soundtrack becomes a listening exercise.
Bitrate: 128 kbps is usually right
Most videos people extract audio from are somebody talking. Speech occupies a narrow band and compresses extremely well, so 128 kbps is indistinguishable from 320 on a voice and produces a file 40% of the size.
Move up to 192 for podcasts with music beds, and 320 only for a live music recording you want to keep.
When there is no audio to extract
Some videos have no soundtrack at all. Screen recordings made without selecting a microphone, silent exports from an editor, and GIF-style captures contain a picture and nothing else, and the tool will say so rather than producing an empty file.
Play the video with the volume up first. If it is silent there, nothing can be extracted from it, because no converter can recover sound that was never recorded.
Nothing is uploaded
These are recorded conversations more often than not, and frequently ones covered by confidentiality: consultations, depositions, internal meetings, paid courses. The conversion runs inside your browser tab using FFmpeg compiled to WebAssembly, so the video is read from your own disk and the MP3 written back to it. There is no server, no queue, and no copy of your recording anywhere but your device.
Common questions
Which video formats work?
All of them, in practice. MP4, MOV, MKV, AVI, WebM, FLV, WMV, 3GP, MPEG, TS and anything else you are likely to have. The tool reads the file, finds the audio stream inside whatever container it is in, and encodes that to MP3.
How long does it take?
Seconds to a minute for most files. The picture is discarded rather than processed, so the resolution is irrelevant and only the length of the soundtrack matters. A one-hour 4K video takes the same time as a one-hour 360p one.
Can I convert several videos at once?
Yes. Drop in as many as you like and they are processed one after another, then offered as a single ZIP. The engine loads once for the whole batch.
Does it work on a phone?
Yes, on any browser from 2023 onwards. The engine is a 9.8 MB download the first time, so it is worth doing on Wi-Fi. Very large videos may exhaust the memory available to a phone browser before a desktop would hit the same wall.
Can I extract audio from a YouTube link?
No. This converts files that are already on your device. There is no URL box, no downloader, and no way to point it at a streaming service.
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