Guide
WEBM SCREEN RECORDING EXPLAINED
Learn why browser screen recorders save WebM, how to play WebM files, and when you might convert to MP4 after download.
WHAT IS WEBM?
WebM is an open media format designed for the web. Modern browsers can record WebM efficiently with MediaRecorder, which is why many free online screen recorders — including this one — save WebM by default.
A typical WebM screen recording uses VP8 or VP9 video (and sometimes Opus audio). That keeps files smaller than uncompressed capture while staying widely playable.
HOW TO PLAY A WEBM DOWNLOAD
Double-click the file to open it in Chrome, Edge, Firefox, or VLC. Most video editors also import WebM. If a specific app rejects the file, convert it once on your machine rather than re-recording.
Because the recording never leaves your device on this site, you choose when — and whether — to convert or upload elsewhere.
WEBM VS MP4 FOR SCREEN CAPTURE
MP4 (often H.264) is still the most universal exchange format for clients and some social platforms. WebM is the natural output of browser APIs and avoids proprietary encoder constraints in the page.
For private drafts and technical demos, WebM is fine. For handoff to a stakeholder who only opens MP4, convert after you download.