WebM to MP3 Converter

Pull the audio out of any WebM video and save it as MP3 — right in your browser.
No installs, no watermarks, 100% free.

Drop your files here to upload
Video or audio — MP4, MOV, MKV, WAV, M4A…
Files never leave your device

Stop replaying it — read it instead.

Extract MP3 from WebM in three steps

WebM is the web's open video format. This converter lifts the audio out and gives you an MP3.

  1. Step 1

    Drop your WebM

    Drag in a WebM file — saved web clips work perfectly. Batches are fine.

  2. Step 2

    Keep MP3, set quality

    Choose a bitrate and hit Convert. The audio is extracted in your browser.

  3. Step 3

    Save your audio

    Each WebM becomes an MP3 to download, or grab them all as a Zip.

What WebM clips become

WebM is what a lot of web video downloads as. Keep just the audio as a universal MP3.

Saved web clips

Extract the audio from a WebM you've downloaded from the web.

Music & performances

Save the sound from a WebM music clip to listen offline.

Talks & tutorials

Turn a WebM recording into an MP3 you can replay hands-free.

Universal playback

Not every player reads WebM; all of them play MP3.

Smaller files

Audio-only MP3 is a fraction of the WebM's size.

Then transcribe it

Convert to MP3 and transcribe with SlayScribe.

Why convert WebM to MP3

WebM is Google's open, royalty-free video format built for the web — efficient in the browser, but not always playable in desktop apps, editors, or older devices. When you only need the audio, converting to MP3 gives you a small, universal file that plays anywhere. The conversion runs locally in your browser, so nothing is uploaded.

WebM at a glance

Full name
WebM (.webm)
Maker
Google — open, royalty-free
Codecs
VP8 / VP9 video + Vorbis / Opus audio
Common source
Web video and downloaded clips
Support
Browser-first; weak in desktop editors
Output
Opus or Vorbis audio pulled out and re-encoded to MP3

Frequently asked questions

Can I extract audio from WebM?

Yes — the converter reads the audio track and saves it as MP3.

Does the WebM audio lose quality?

The WebM audio is re-encoded once from Opus or Vorbis to MP3; at higher bitrates the difference is inaudible.

Is the WebM uploaded anywhere?

No — the file is decoded and converted inside your browser.

How large a WebM can I convert?

Up to about 1 GB per file, because the browser keeps the video in memory while converting.

Can I convert multiple WebM files together?

Yes — add several WebM files and get one Zip with all the MP3s.

Can I transcribe it?

Yes. Export the audio as MP3, then SlayScribe turns the speech into text.

More converters

All formats →Video ConverterMP4 to MP3

Need the words, not just the audio?

SlayScribe turns any audio or video into accurate text in seconds — transcripts, captions, and subtitles in 99 languages.

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