WebM converter
Convert WebM files to 33 other formats, or turn 21 other formats into WebM. Everything runs in your browser — drop a file in and pick where it should end up.
Drop your WebM files here
or browse your device · paste with Ctrl+V
Accepts .webm. Choose any output format from the menu on each row.
Your files never leave this device — there is no upload and no server to delete them from.
WebM
WebMGoogle's royalty-free container built for HTML5 video, pairing VP8 or VP9 with Vorbis or Opus. Smaller than H.264 MP4 at matching quality, and supported by every current browser.
- Developed by
- Released
- 2010
- Extension
- .webm
- MIME type
- video/webm
- Compression
- Lossy
- Specification
- Open
- Readable directly in your browser.
- Can be written directly in your browser.
- 33 outgoing and 21 incoming conversions available.
- 01
Add WebM files
Drop them on the box above. Batches are fine — each file gets its own row and its own settings.
- 02
Pick an output format
The menu on each row lists every format this file can become, grouped by category and searchable.
- 03
Convert and save
Everything happens locally. Download the files individually, or grab the whole batch as a ZIP.