Free tool
MP4 to WebM Converter
Make a WebM video for your website in a few clicks.
- No upload
- No account
- No watermark
- No credit card
How it works
Convert MP4 to WebM in 3 steps
- 01
Choose an MP4 file
Drop the video into the panel.
- 02
Choose WebM
WebM is the default on this page.
- 03
Download the WebM
Click Convert. The file goes to your Downloads when it is ready.
Then keep editing
The full editor is right behind the tool
Click Edit in Raymarch, and your file goes on a real timeline. Cut it, add titles, captions and music, and export to MP4, MOV, MKV or WebM. The editor is free.
See the timeline editor
Frequently asked questions
Why use WebM?
WebM plays in every modern browser, and it is common for video on websites.
Is this tool free?
Yes. There is no account, no credit card, no watermark and no limit on the number of files.
Do you upload my file?
No. Your file stays on your computer, so even a large file starts right away.
Which browsers work?
Chrome and Edge on a computer work best.
More free tools
Convert MP4 to WebM now
No upload · No account · No watermark · No credit card