How to use the GIF to WebM tool
- Choose your GIF.
- Pick the background colour and repeat count.
- Press Convert GIF.
- Download the WebM and use it in a looping video tag.
About this tool
WebM with VP9 video is the efficient, royalty-free format for the open web. For an animation that would be a multi-megabyte GIF, WebM is usually the smallest result of all, which makes pages load faster and saves bandwidth.
Every GIF frame is read with its own delay, so the animation keeps its original rhythm. Transparent areas are filled with a colour you choose, since WebM video in this tool has no alpha channel.
Why use ToolsCrow for this
- Smallest result. VP9 beats both GIF and H.264 at the same quality.
- Original timing. Per-frame delays preserved.
- Web-ready. Ideal for autoplay looping video on a page.
- Private. No upload.
Good to know
- WebM does not play in older Safari versions. Provide an MP4 as a fallback for maximum reach.
- Transparency becomes a solid colour.
Frequently asked questions
Is my video uploaded to a server?
No. Everything runs inside your browser tab using your own device's video hardware. Your file is never sent to ToolsCrow or anyone else, which also means there is no waiting for an upload and it keeps working if your connection drops after the page has loaded.
Is it really free? Is there a watermark?
It is free with no sign-up, no watermark and no daily limits. The only limits are the ones your device sets: memory and processing power.
How large a video can I use?
Because the video is processed on your device, the limit is your device's memory rather than a server quota. Phone clips of several hundred MB are fine on most devices, and desktop computers usually handle 1 to 2 GB. Files over about 4 GB are not supported.
Which browsers work best?
Current Chrome, Edge and Safari (16.4 or newer, including iPhone and iPad) work best because they include the WebCodecs video engine. Recent Firefox versions work for many files. Older browsers fall back to a much slower real-time mode or may not work at all.
Should I use WebM or MP4 for my website?
Offer both: WebM first for smaller files in Chrome, Edge and Firefox, with an MP4 fallback in the same video tag for older Safari.
How do I make it loop and autoplay?
Use a video tag with the autoplay, loop, muted and playsinline attributes. Browsers only autoplay muted video.
Related video tools
- GIF to MP4Turn a heavy GIF into a small MP4.
- Video to GIFMake an animated GIF from any part of a video.
- Compress GIFShrink a GIF that is too big to send or upload, by reducing its width, dropping frames and using fewer colours.
- Resize GIFMake a GIF smaller in pixels while keeping the animation smooth and the timing intact.
- MP4 to WebMConvert MP4 files to WebM in your browser.
- Video CompressorShrink any video to a fraction of its size while keeping it sharp, or type the exact size you need in MB.
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