How do I convert WebM files?

Choose your WebM files or drop them on this page, pick a format (MP4, MP3, GIF, MOV, MKV, WAV, M4A, FLAC, OGG, Opus and AAC), then select Convert and save the results.

Is it safe to convert WebM files here?

Yes. Decant converts WebM files in your browser, so they’re never uploaded, stored or logged.

Can I convert many WebM files at once?

Yes. Add as many as you like and they convert together. Save each result on its own, or all of them as one ZIP.

WebM converter: free, private, no upload

Decant

.webm.mp4

Convert WebM files to MP4, MP3, GIF and more in your browser.

Drop files here

or paste them in. Whole folders work too.

Nothing is uploaded
Works offline
Free and open source

What are WebM files?

WebM is an open video format for the web, using VP8, VP9 or AV1 video. Browsers play it, but many editors and Apple apps don’t.

WebM to other formats

MP4
MP3
GIF
MOV
MKV
WAV
M4A
FLAC
OGG
Opus
AAC

Other formats to WebM

MP4 to WebM

Questions

How do I convert WebM files?: Choose your WebM files or drop them on this page, pick a format (MP4, MP3, GIF, MOV, MKV, WAV, M4A, FLAC, OGG, Opus and AAC), then select Convert and save the results.
Is it safe to convert WebM files here?: Yes. Decant converts WebM files in your browser, so they’re never uploaded, stored or logged.
Can I convert many WebM files at once?: Yes. Add as many as you like and they convert together. Save each result on its own, or all of them as one ZIP.