Convert video to MP3
Drop in a video and keep only its sound, as an MP3. MP4, MOV, MKV, WEBM and 3GP from phones, cameras and screen recorders work; AVI doesn’t. The file never crosses the internet.
Turn a video file into MP3
video to MP3, in your browser
Drop a file here or choose one. It stays on this device. Up to 500 MB and 2 hours of sound.
Your browser does the conversion. Open your browser’s network tab while converting to check that the file is not uploaded.
The MP3 encoder is lamejs, open source under the LGPL. See open-source licenses.
The video never leaves your device. It is decoded by your browser and turned into an MP3 on your machine, with no account needed and no copy kept by Textspert.
Which video formats work
| Format | Where it usually comes from | Works here |
|---|---|---|
| MP4 | Phones, Zoom, most cameras and editors | Yes |
| MOV | iPhone and Mac screen recordings | Yes |
| MKV | Recording software such as OBS | Yes, in Chrome and Edge |
| WEBM | Browser recorders and some web apps | Yes |
| 3GP | Older phones | Yes |
| AVI | Older cameras and Windows software | No, the browser can’t decode it |
A file from that last row can still go to Textspert for a transcript. Uploads go through a full media toolkit on Textspert’s servers, not your browser, so AVI is fine there. You get text back, not an MP3.
Three steps from video to audio
Pick or drop the video
One file at a time, up to 500 MB.
Watch the progress bar
The browser reads the sound track first, then the MP3 encoder runs. Leave the tab open meanwhile.
Download
The MP3 takes the video’s file name. Convert another whenever you like.
Sound quality and file size
Every MP3 comes out at 128 kbps and 44.1 kHz. Video audio is already compressed, so a higher bitrate would only make a bigger file, with no detail coming back. Plan on about 1 MB of MP3 a minute, roughly 58 MB an hour.
Two channels stay two channels. Home video with surround sound mixes down to stereo, center channel included, so voices don’t vanish.
Converting video straight from a phone
Open this page on your phone and pick a clip from the camera roll. An iPhone may hand the browser a copy first, which takes a moment on a long video. Android’s file picker puts recent videos at the top.
Phones have less memory to spare than laptops, so a clip of a few minutes is the sweet spot. Move a long recording to a computer and convert it in Chrome or Edge, where the same page has far more room.
Use it on your own videos
There’s no link box, and the page never fetches anything from video sites. It reads files already on your computer. Ripping a soundtrack you don’t own and sharing it can break copyright law, so stick to your own footage or clips you’re allowed to use.
When a transcript is the real goal
For the words spoken in the video, skip the MP3 and upload the video itself. You get a transcript with timestamps and speaker labels, plus SRT and VTT subtitles. Video to text explains the steps, and the subtitle generator covers captions.
MP4 to MP3 and M4A to MP3 each get a page of their own, with tips for that one format.
Need a transcript of the video?
Launching November 2026
Video to MP3 questions
Can I convert a MOV from my iPhone?
Yes. iPhone videos and screen recordings are MOV files with AAC sound, which Chrome and Edge decode.
Why does an AVI file fail?
Browsers don’t ship a decoder for most AVI audio. Convert it with a desktop program, or upload it to Textspert for a transcript.
Is there a watermark or a limit per day?
Neither. Your computer does the work, so we have nothing to ration.
Does it work on a phone?
Small files usually do. Long videos fail more often there, because a phone has less memory than a laptop.
Can it download a video from a link?
No. It only converts files you already have on your device.
Related tools
- Video to textGet a transcript or SRT and VTT subtitles from MP4, MOV, MKV and other video files.
- MP4 to MP3Pull the audio out of an MP4 as an MP3, right in your browser.
- Meeting transcriptionUpload a Zoom, Teams or Meet recording and get notes and action items, with no bot on the call.
- ToolsEvery transcription tool on one page.
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