OctoolyWhy convert WebM to MP3?
Got a WebM recording of a call or an online class? Save just the audio as MP3 to listen on the go or send it to someone.
How to convert WebM to MP3
- Drop your WebM file in the box above, or click to choose it.
- Check the options and click the button. Your browser does the conversion.
- Download your MP3. Nothing was uploaded.
What is WebM?
WebM is the open video format of the web (VP8, VP9 or AV1 video with Opus audio). Browsers handle it well, but iPhones, PowerPoint and many editors don't.
What is MP3?
MP3 is the universal audio format: it plays on every phone, car stereo, smart speaker and music app.
Frequently asked questions
Is it really free?
Yes. No sign-up, no watermark and no limit on how many files you convert. The site is paid for by ads.
Is my video uploaded anywhere?
No. The conversion runs inside your browser, on your own computer. The file never leaves your device, not even to our servers.
Is there a file size limit?
There is no upload limit, because nothing is uploaded. Very large files (several GB) depend on your computer's memory.
Will I lose quality?
The audio is encoded as a high-quality MP3, good for music and voice alike.
Which browsers work?
Google Chrome and Microsoft Edge on a computer work best. They have the video encoders the converter needs.