Convert MP4 to WebM
WebM is open, small and made for the web, ideal for background videos and videos on your own site.
Open the tool, it's freeFree · no account · no watermark · your files stay on your device
MP4 is the standard video format; its sound is usually AAC. WebM is an open video format made for the web, often used for screen and browser recordings.
The WebM file is open, small and plays in every modern browser, good for your own website. Safari can’t save WebM yet; use Chrome, Edge or Firefox.
What you get
- MP4 in, WebM out
- Keep the size or pick 1080p, 720p or 480p
- Same, high or smaller-file quality
- Uses your graphics chip for speed where it can
- No watermark, nothing uploaded
How to convert MP4 to WebM
- Open MP4 to WebM and choose your video.
- WebM is already selected. Pick the quality and size.
- Press Convert and save the WebM file.
Tip: If a site or app refuses your MP4, converting it to MP4 is almost always the fix.
Questions
Will the video look worse?
With quality set to Same as the original, Clipabay picks a bitrate that matches your video, so it looks the same. Choose Smaller file when size matters more.
Is there a size limit?
No fixed limit. Long videos and files of several GB work; it depends on your device’s memory.
Are my files uploaded?
No. Everything happens inside your browser, so your files stay on your own computer or phone.
Is it really free?
Yes. There is no account, no trial, no watermark and no limit on how many files you convert. Clipabay is kept going by people who choose to buy us a coffee.