Video to MP3

Sometimes you only need the sound: the audio from a recorded lecture to listen to on a commute, a voice-over from a screen recording, music from your own performance video, or an interview captured on a phone camera.

This tool extracts the audio track from a video file and saves it as MP3, directly in your browser. It uses the browser's own media decoder to read the soundtrack, then encodes MP3 with a LAME-based encoder at the bitrate you pick.

Video files are large, and uploading a 400 MB clip just to get a 5 MB MP3 back is slow. Here nothing is uploaded — extraction begins the moment you click.

This works on files you have on your device. It does not download from YouTube or other streaming sites; saving their content is usually against their terms, and it isn't something a browser tool can do legitimately. If the video is yours, export or download it first, then extract the audio here.

How It Works

1. Add video files — MP4, MOV, M4V, WebM, MKV and more, up to 500 MB each and 20 per batch.
2. Decode the soundtrack — the Web Audio API decodes the video's audio stream (AAC, Opus, Vorbis or MP3) into samples; the picture is ignored, so this is much faster than playing the video.
3. Encode MP3 — choose 48–320 kbps, sample rate and mono/stereo. The MP3 is encoded with lamejs and offered for download, singly or as a ZIP.

Compatibility & Support

Supported Input → Output Formats

• Input: MP4, M4V, MOV, WebM, MKV, OGV, 3GP (audio codec must be supported by your browser)
• Output: MP3, 48–320 kbps, mono or stereo
• Typical codecs: AAC (phones, MP4/MOV), Opus/Vorbis (WebM), MP3

Unsupported Formats

The video picture is not converted — this page produces audio only. For animated clips use Video to GIF, and for still images Video to JPG Frames. Changing a video container (for example MOV to MP4) or compressing video needs a full video encoder, which this site does not offer because browser-based video encoding is still too slow and inconsistent to do reliably. Videos whose audio is AC-3, E-AC-3 or DTS (common in movie rips and some MKV files) can't be decoded by most browsers. Silent screen recordings have no audio track to extract. Chrome, Edge and Safari decode AAC audio in MP4/MOV; Firefox on some Linux systems cannot.

File Size Limits

Up to 20 videos per batch and 500 MB per file. The audio is held in memory while encoding — roughly 20 MB per minute of stereo sound — which desktop browsers handle easily and phones handle for clips up to about half an hour.

Who Should Use This Tool?

• Students: A student extracts the audio from recorded Zoom lectures as 64 kbps mono MP3s to revise while travelling, saving phone storage compared with keeping the full videos.
• Freelancers & Designers: A content creator pulls the voice-over from a screen recording to clean it up in an audio editor.
• Office Professionals: A communications officer extracts the audio of a recorded town-hall meeting for an internal podcast feed.
• Developers: A developer extracts audio from test videos to check speech-recognition accuracy on real recordings.

Why This Tool Beats the Alternatives

• No uploading of multi-hundred-megabyte videos.
• Private — recorded meetings and family videos stay local.
• Free batches with no watermark or length limit.
• Clear codec guidance when a video's audio can't be decoded.
• Works on Windows, macOS, Linux and Chromebooks without FFmpeg.

Pro Tips

• Lecture and meeting audio is speech: 64–96 kbps mono keeps it clear and small.
• To keep only part of the audio, extract first, then use the Audio Trimmer.
• If a MOV or MKV fails in one browser, try Chrome or Edge — codec support differs between browsers, and iPhone MOV files with AAC audio usually work everywhere except some Linux builds of Firefox.

Drop your video files above and download their audio as MP3.