WebM Converter
Convert WebM files to and from other formats for free right in your browser - no uploads.
- Free Converter
- No Registration
- No Uploads
Add files
Drop files anywhere on the page or paste them with Ctrl+V / ⌘+V
Convert WebM to other formats
Convert other formats to WebM
What else you can do with WebM
About the WebM format
WebM
WebM appeared in 2010 and is based on Matroska. It uses royalty-free codecs: VP8, VP9 or AV1 for video and Vorbis or Opus for audio, and browsers play it without plugins.
Screen recorders and browsers often save recordings in WebM. For editing on iPhone or in older editors it is more convenient to convert WebM to MP4.
Best for video on websites and screen recordings.
WebM specifications
| Property | WebM |
|---|---|
| File type | Video |
| Extensions | .webm |
| MIME type | video/webm, audio/webm |
| Conversion from this format | Yes |
| Conversion to this format | Yes |
| Quality setting | Yes |
How to convert WebM files?
Add WebM files
Drag and drop files onto the page or click the upload area. You can add several files at once.
Choose the format and settings
Pick the target format and, if needed, adjust quality, size and other options.
Download the result
Conversion runs right in your browser. Download files one by one or all at once as a ZIP archive.
Similar formats
Frequently asked questions
How do I convert WebM files?
Add WebM files above, choose the target format and settings, then download the result. Everything runs in your browser.
What can I convert WebM to?
For example, to MP4, MOV, MP3, WAV. All options are listed above.
Which formats can be converted to WebM?
For example, MP4, MOV. All options are listed above.