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ConvertAnyVideo

WebM to MP3 Converter

Extract the audio from WebM videos and save it as MP3. Pick the bitrate, trim the start and end, and download in seconds.

or drop files here

Up to 1 GB per file · Files never leave your device

  • 100% free
  • No sign-up
  • No upload — private
  • No watermark

How to convert WebM to MP3

  1. Add your WebM files

    Click “Choose Files” or drag and drop your WebM files onto this page.

  2. MP3 is selected

    The output is already set to MP3. Open Advanced settings if you want to change the bitrate or trim the audio.

  3. Convert and download

    Click Convert. Your MP3 file is ready in moments — nothing is uploaded.

About the formats

WebM

WebM Video

WebM is an open, royalty-free format made for the web. It uses VP8/VP9 video with Opus or Vorbis audio and plays directly in modern browsers.

MP3

MPEG Audio Layer III

MP3 is the most compatible audio format in the world. It plays on every device and gives small files with good sound quality.

Frequently asked questions

How do I convert WebM to MP3?

Click “Choose Files” and select your WebM file (or drag it onto the page). MP3 is already selected as the output, so just click Convert and download your MP3 file when it’s ready.

Will the audio quality change?

The audio is saved at high quality (192 kbps by default). If the video’s soundtrack is already in a compatible format, it is copied without any quality loss.

Is it safe to convert WebM files here?

Your files stay on your device. Conversion runs inside your own web browser, so your files are never uploaded to our servers or anyone else’s. Nobody can see them, and nothing is stored after you close the tab.

Is the WebM to MP3 converter free?

Yes, it’s completely free. There’s no sign-up, no watermark and no limit on how many files you convert. Each file can be up to 1 GB.

Can I convert several WebM files at once?

Yes. Add as many WebM files as you like and convert them in one go, then download them one by one or together as a ZIP file.

Convert WebM to other formats

Convert other formats to MP3