About the GIF to WebM
WebM is an open video format made for the web. It plays in Chrome, Edge, Firefox and current Safari, and web pages can loop it silently just like a GIF, but at a tiny fraction of the weight. This tool turns animated GIFs into WebM videos on your own device. It keeps the original frame timing, lets you repeat the clip inside the file and fills see-through areas with white or black. Convert one GIF or a whole batch, and download single files or a ZIP. No GIF is uploaded to any server.
Updated October 2026
How to use the GIF to WebM
- 1Select your animated GIFs or drop them on the page.
- 2Choose how many times to repeat the animation in the video.
- 3Choose the colour behind transparent areas, and the quality.
- 4Wait for the conversion. Each row shows how much smaller the WebM is.
- 5Download single files or all at once as a ZIP.
A lighter way to show motion
A GIF of a product demo can weigh 12 MB, which is heavy for a landing page. The same motion as a WebM often weighs around 500 KB. Pages load faster, mobile visitors use less data, and search engines reward fast pages.
How to use the file on a website
Put the WebM in a video element and add the attributes that make it behave like a GIF. Many sites also add an MP4 source as a fallback for older devices.
- autoplay, loop and muted so it starts by itself
- playsinline so it does not open full screen on phones
- a poster picture while it loads
Settings explained
Repeat places the animation several times in the file; leave it at once if your page loops the video itself. The background colour is used only for transparent GIFs; pick the colour of your page. High quality keeps thin lines clean, while Smaller file reduces the size further.
An example
A 600 pixel wide, 4 second GIF of 9 MB usually becomes a WebM around 300 to 700 KB. Animations with flat colours, such as interface demos, shrink the most; photographic GIFs with lots of noise shrink less but still a lot.
Phone and computer
On a phone, convert GIFs saved in your files and upload the WebM to your site or app. On a computer, drop a folder of GIFs and take the ZIP. If a GIF is very large, the tool says so rather than freezing your browser.
Good to know
WebM is encoded by your browser using WebCodecs. If your browser cannot encode WebM, the tool shows a clear message and you can try Chrome or Edge. The output is limited to 1920 pixels on the longest side, with even dimensions. For small web video use GIF to MP4, and to go from video back, use Video to GIF. For a small video file, GIF to MP4 is the other choice, and Video to GIF goes back to a loop. For iPhone and Mac, GIF to MOV makes a video those devices open without trouble.
Features
- Open WebM format for websites
- Every frame and delay kept
- Repeat the clip inside the file
- White or black background for transparency
- Bulk conversion
- No upload
Frequently asked questions
What is WebM and why use it instead of a GIF?
WebM is a free video format built for the web. It stores moving pictures far more efficiently than GIF, so pages load faster and use less data.
Can I loop a WebM like a GIF on my site?
Yes. Use a video element with the autoplay, loop, muted and playsinline attributes. It then behaves like a GIF without the weight.
Does WebM keep transparency?
This tool fills see-through areas with white or black, because the encoder used here makes opaque video. Choose the colour that matches your page.
Will it play on an iPhone?
Current Safari versions play WebM, but older iOS releases do not. If you need the widest reach, use GIF to MP4 as well.
Is there sound in the WebM?
No. GIFs have no sound, so the WebM is silent.
Is my GIF sent anywhere?
No. All the work happens in your browser.