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Tools/Video/Convert/Video to MP3: Extract Audio from Video Online

Видео

Видео в MP3

Достаём звуковую дорожку из видеофайла и сохраняем её в MP3: подходит для лекций, интервью, подкастов и музыки из своих записей. Видео не загружается на сервер, всё считает браузер.

Файл

Результат

Длительность-
Частота-
Каналы-
Размер MP3-

Звук читается средствами самого браузера, поэтому надёжнее всего работают MP4, M4V, WebM и OGV. Файлы MKV и AVI браузер часто не открывает — такие лучше сперва пересобрать в MP4.

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Tool guide

Video to MP3: Extract Audio from Video Online

Often only the audio matters: a lecture that is easier to listen to on the move, an interview to transcribe, a recorded call, or music from your own footage. This tool reads the audio track with the browser's built-in decoder and encodes MP3 using the LAME library right on the page. The video is never uploaded, so work recordings and material you cannot hand to third-party services can pass through safely. See also: keep the picture and throw the sound away, convert M4A to MP3 right in the browser, measure the loudness before you publish.

How to use it

  1. Choose a video file or drop it into the field — MP4, M4V, MOV, WebM and OGV are the most reliable.
  2. Pick a bitrate: 96-128 kbps is enough for speech and lectures, 192 kbps or higher for music.
  3. For lectures and calls tick the mono option: the file halves in size with no loss of intelligibility.
  4. Press convert. Processing is faster than real time, but a long video still needs a couple of minutes.
  5. Play the track on the page and download the MP3.

FAQ

Which video formats are supported?

Those the browser itself can open: MP4, M4V, MOV with a common codec, WebM and OGV. That covers nearly everything phones shoot and screen recorders produce. MKV and AVI usually cannot be opened, and MOV with HEVC depends on your system: it generally works on macOS and in Edge but not in Chrome on Windows.

Is audio quality lost during extraction?

The audio inside a video is already lossy and MP3 compresses it again, so formally yes. In practice the difference is inaudible if you keep the bitrate at or above the source: 128 kbps is enough for a 128 kbps AAC track, while a music video deserves 192 kbps.

Is the video uploaded to your server?

No. The file is read straight from your filesystem by the browser, decoded by the browser and encoded by a library running on the page. No network request carries the file contents, which is visible in the Network tab of developer tools.

Why does the tab slow down on a large file?

The decoded audio is held in the tab's memory in full: an hour of stereo takes roughly 600 MB. Encoding runs in chunks so the page stays responsive, but a very long video may not fit on a phone or a weak laptop. The mono option or splitting the source helps.

Can I extract audio from just one part?

No, the tool takes the whole track; trimming is a separate job. If you need a fragment, cut the video in an editor first and extract the audio from that piece here.

What if the result has no sound?

The file most likely has no audio track, which happens with silent screen recordings and clips whose audio was already removed. The tool says so explicitly in that case. Check the source in any player: if it is silent there too, there is nothing to extract.

Examples

Lecture for listening on the move 
Before: lecture.mp4, 1 hour 20 minutes, 1.2 GB
After: lecture.mp3 at 96 kbps mono — about 55 MB
Audio from a recorded call for transcription 
Before: meeting.webm from a screen recording
After: meeting.mp3 — accepted by automatic transcription services