Video to MP3 converter — free online
Convert any video to MP3 right in your browser — no sign-up, no watermarks. The file never leaves your device.
How to convert video to MP3
- Drag a video into the box or pick a file — a phone clip, a screen recording or a downloaded video all work.
- Keep MP3 as the format (or switch to M4A or WAV) and press Convert to MP3.
- Download the MP3 — it plays in any player, phone or car stereo.
Limitations
MP3 is encoded at 192 kbps — plenty for music and more than enough for speech. If the video's audio is already MP3, the track is copied without re-encoding and zero quality loss. A video with no audio track cannot become an MP3 — the tool will say so right away.
Supported formats
| Format | Input | Output | Note |
|---|---|---|---|
| MP4 (H.264/H.265) | Yes | MP3 | |
| MOV | Yes | MP3 | |
| WebM / MKV | Yes | MP3 | Opus or Vorbis audio is re-encoded to MP3 |
| AVI / WMV | No | — | browsers cannot read these containers — re-save the video as MP4 first |
Frequently asked questions
What is the MP3 quality?
192 kbps — the standard bitrate of music streaming services. And if the video's audio is already stored as MP3, the track is copied as is, with no re-encoding at all.
Does my video get uploaded anywhere?
No. Conversion runs in your browser and the file never leaves your device. That is why there are no queues and no size limits.
How do I turn an MP4 into an MP3?
Drag the MP4 into the box above and press Convert to MP3. The AAC track inside the MP4 is re-encoded to MP3 — even a long video takes just minutes.
Is there a size or duration limit?
No hard limits: the file is processed as a stream, so multi-gigabyte videos work. The only constraint is your device's memory.
Do I need an account? Will there be a watermark?
No and no. The tool is free and needs no sign-up, and there is simply nowhere to put a watermark in an audio file.
Can I save the audio as M4A or WAV instead of MP3?
Yes — there is a format picker above the run button. M4A can often copy the track out of an MP4 without re-encoding, and WAV keeps the audio uncompressed for further editing.
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Need more than one tool?
Kadrcut is also a full video editor in your browser: timeline, multiple tracks, text, effects and transitions. Free, no sign-up — your files never leave your device.
Try the editor