How to use it
- Add your files. Drop GIF files on the page or use Choose files. Folders and ZIPs work too.
- Check that WebM is selected. WebM is already chosen on this page.
- Adjust options if you need to. Quality, size and other settings appear when the format has them.
- Convert and download. Press Convert; with several files, “Download all” gives you one ZIP.
What happens to your file
Every frame of the animation is decoded and encoded as WebM video, which is usually many times smaller than the GIF. Timing and size are kept.
About GIF and WebM
GIF: GIF is the classic animated picture format: 256 colours, plays everywhere, but files get large.
WebM: WebM is the open web video format (VP8/VP9 with Vorbis or Opus sound), made for browsers.
Questions
Is my GIF file uploaded?
No. The conversion runs inside this browser tab, and the WebM is created on your device. Nothing is sent to a server.
Can I convert several GIF files at once?
Yes. Drop as many as you like, a folder or a ZIP; “Download all” saves every WebM in one ZIP.