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ConvenTools

Video to MP3 — Extract Audio in Your Browser

Runs in your browser — your files never leave your device

Pull the soundtrack out of a video and save it as an MP3 — entirely in your browser. Pick a bitrate, extract, and download. Your video is never uploaded.

Drop a video here, or click to choose
Converted on your device — nothing is uploaded.

How to use it

  1. 1
    Choose a video

    Drop a video onto the drop zone, or click to select one (MP4, MOV, WebM, MKV and more).

  2. 2
    Pick a bitrate

    Choose 128, 192 or 320 kbps — higher is better quality and a larger file.

  3. 3
    Extract

    Click Extract MP3. The first run loads the converter (~30 MB) once.

  4. 4
    Download

    Play the result in the page, then download the MP3. Nothing was uploaded.

Audio, without the video

Perfect for saving a song, a lecture, a podcast or an interview from a video file as a compact MP3 you can play anywhere. The video track is dropped and only the audio is encoded.

Runs on your device

The conversion uses a WebAssembly build of ffmpeg that runs inside the page, so the file never leaves your device. The first conversion loads the converter (about 30 MB) once; after that it is instant.

Frequently asked questions

Is my video uploaded to a server?

No. Extraction happens entirely in your browser with a WebAssembly build of ffmpeg — your video never leaves your device.

Which video formats are supported?

Common formats like MP4, MOV, WebM, MKV, M4V and AVI. If a file has an audio track, its audio can be extracted.

Why does the first conversion take a moment?

The in-browser converter (~30 MB) downloads once on first use, then is cached for the session, so later conversions start immediately.

What bitrate should I choose?

192 kbps is a good default. Use 320 kbps for the best quality, or 128 kbps for the smallest file.