Toolest

MP4 to MP3 Converter

Drop a video and download its audio as MP3. The extraction happens on your device, so there is no upload and no waiting in a queue.

drop your files anywhere in this area

Your files never leave your device. This tool even works offline.

MP4 M4V WEBM MOV

01 / Fast steps

  1. Drop or pick your video files.
  2. The audio track is extracted and encoded automatically.
  3. Download the MP3 files.

02 / Best for

  • Save the audio of a lecture, webinar or interview.
  • Turn a music video into a listenable track for offline use.
  • Extract dialogue from screen recordings for transcription.

03 / Why here

  • No upload: extracting audio from a 200 MB video starts instantly instead of waiting for it to reach a server.
  • Runs entirely in your browser, so personal videos never leave your device.

04 / Keep in mind

  • Audio is encoded to MP3 at 192 kbps, a quality level suited to voice and music alike.
  • Very long recordings are constrained by browser memory; typical videos and screen recordings work fine.
  • DRM-protected videos cannot be decoded.

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faq

Questions, answered.

01Is my video uploaded to a server?

No. The browser decodes the audio track locally and encodes it to MP3 on your device. Nothing is transmitted, which also makes it fast: there is no upload step at all.

02Which video formats are supported?

MP4 and WebM everywhere; MOV works in browsers that can play it (Safari always, Chrome for most common codecs). If the browser can play the video, it can extract its audio.

03Is MP4 to MP3 free to use?

Yes, MP4 to MP3 is completely free, with no sign-up and no usage limits. It runs entirely in your browser, so your data never leaves your device.