How to convert GIF to WebM
- Click Choose files or drop your GIF animation into the box above.
- Keep the default quality, or choose a target size, resolution or frame rate.
- Click Convert and download the WebM when it is ready.
GIF vs WebM
| GIF | WebM | |
|---|---|---|
| Compression | Lossless | |
| Transparency | On/off only | No |
| Animation | Yes | No |
| Colors | Maximum 256 colors per frame, on/off transparency | |
| File size (photos) | Large for photos and video clips | |
| Opens on | Every browser, messenger and social network | |
| Best for | Short looping animations, reactions and simple graphics | Video embedded in websites and screen recordings |
About GIF and WebM
What is GIF?
GIF is the original animated image format of the web. Each frame can use at most 256 colors and a pixel is either fully transparent or fully opaque, so photos look grainy and animated GIFs are much larger than the same clip as MP4. It is still everywhere because every app can play it without a video player.
- Animation that plays anywhere, no player needed
- Supported by every messenger and social network
- Only 256 colors
- Huge files compared with MP4 or WebP
- No partial transparency
What is WebM?
WebM is an open, royalty-free video format designed for the web. Screen recorders and browsers often save clips as WebM. It is efficient, but many video editors, iPhones, smart TVs and upload forms do not handle it well, so WebM files are frequently converted to MP4.
- Royalty-free and efficient
- Plays in Chrome, Firefox and Edge
- Weak support in editors, TVs and some Apple apps
Why GlideConvert?
- Private by design. Your files are converted on your own device by your browser — they are never uploaded to a server. That keeps them private, avoids upload waits and means there is no queue.
- Fast. Images convert in a fraction of a second; video uses your device’s hardware encoder and is often simply repackaged without re-encoding.
- Free. No sign-up, no watermark. 10 images, 5 audio files or one video at a time — Pro lifts the limits and removes ads.
Frequently asked questions
Which codecs does the WebM use?
VP9 video with Opus audio when your browser can encode them (falling back to VP8), the standard WebM combination supported by Chrome, Firefox, Edge and Android.
Why convert GIF to video?
A WebM of the same animation is usually 5–10 times smaller and looks better, because video compression is far more efficient than GIF’s 256-color frames. Many sites (including X/Twitter) convert uploaded GIFs to video anyway.
Is there a file size limit?
On the free plan each video or audio file can be up to 500 MB and each image up to 100 MB. With Pro the limit is 4 GB per file. Because everything happens on your device, the practical limit for very large files is your device’s memory.
Are my files uploaded to a server?
No. GlideConvert runs entirely in your browser: images are processed with the browser’s built-in codecs and WebAssembly, video and audio with hardware-accelerated WebCodecs (or a WebAssembly build of FFmpeg for older formats). Nothing is sent anywhere — you can even disconnect from the internet once the page has loaded.
Does it work on iPhone, Android, Mac and Windows?
Yes. It works in any up-to-date browser — Chrome, Edge, Safari, Firefox or Samsung Internet — on phones, tablets and computers, with nothing to install. Long or 4K videos convert faster on a computer than on a phone.