Convert MP4 to WebM
WebM is Google's open, royalty-free video format designed for the web. Convert your MP4 videos to WebM for lighter web embeds with VP9 compression, all in your browser, no file uploads, and completely free.
How to finish the conversion
- 01
Open FastEdit
Go to app.fastedit.net. No signup required.
- 02
Add your MP4
Drag and drop your .mp4 video file into the editor.
- 03
Choose WebM output
Select WebM from the format options.
- 04
Configure encoding
Adjust resolution, bitrate, or trim the video. VP9 encoding offers competitive compression at any bitrate.
- 05
Export
Download your WebM file. The entire encode runs in WebAssembly on your device.
Benefits
- WebM (VP9) is royalty-free: no licensing costs for web publishing.
- VP9 offers comparable or better compression than H.264 at the same visual quality.
- Ideal for HTML5 video embeds where you want an open-format alternative to MP4.
- Supported by Chrome, Firefox, and Edge, covering the vast majority of web traffic.
- No upload means full privacy for sensitive or proprietary video content.
Switch formats in the browser, then download the version that actually fits.
Convert in FastEdit