MP4 to WebM Converter

A free online MP4 to WebM converter. Drop in an MP4, MOV, or MKV video, trim it if you like, and preview the WebM before downloading. Files never leave your browser.

Drop a video here

MP4, MOV, M4V, MKV, or AVI

video.mp4 -- MB

Trim video

Selection

Advanced options

Encoding speed

Quality Medium

Smaller file Larger file

Resolution

Keep audio

Converts locally in your browser. Performance depends on your device. Large files may take longer or fail.

Upload a Video to Convert to WebM

Conversion Settings and Options

Preview and Download the Converted WebM File