Compress WebM files

Upload a WebM file and shrink its size by re-encoding the video at a lower bitrate. Re-encoding long videos takes a while, so keep the tab open.

Quality

Lighter recordings for the web

Browser screen recordings can run larger than expected. Re-encoding at a lower bitrate, locally, brings them down to attachment-friendly sizes, and screen content tolerates compression unusually well.

Frequently asked questions

Why do my screen recordings vary so much in size?

Recording bitrate adapts to motion: static slides are cheap, scrolling and video playback are expensive. Compression evens out the excess.

Best setting for a tutorial recording?

Moderate compression: text stays crisp at surprisingly low bitrates as long as motion is limited.

Is the clip uploaded?

No, everything is processed in your browser.