Convert WebM to MP3
Convert WebM video or audio to MP3 free. Screen recordings and browser downloads work. Runs in your browser, nothing uploaded.
Drop a video or audio file here
or click to browse. Converted in your browser, nothing uploaded.
MP4 · MOV · MKV · WebM · AVI · WAV · M4A · FLAC · OGG · OPUS and more
🔒 Converted on your device. Your file is never uploaded.
WebM files, from browser screen recorders, web downloads, and voice notes, usually hold Opus or Vorbis audio that many players and editors don’t support. Convert to MP3 for a file that works everywhere.
The conversion happens locally in your browser, with no upload and no account.
How it works
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Drop your file
Video or audio in any common format. Nothing is uploaded.
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Converted in your browser
FFmpeg runs on your device, so even big files start right away.
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Download
Save the new file. No watermark, no account, no queue.
Frequently asked questions
Is my file uploaded to a server?
No. The converter (FFmpeg compiled to WebAssembly) runs inside your browser, so the file never leaves your device. That also means there is no upload wait, even for big videos.
Do audio-only WebM files work?
Yes. WebM files that contain only audio convert the same way.
Can I convert WebM to WAV instead?
Yes. Choose WAV as the output for uncompressed audio, handy for editing.