How much smaller is WebM compared to GIF?

For typical content WebM is often 10–30× smaller than GIF with no perceptible quality loss.

Which platforms support WebM?

All modern browsers (Chrome, Firefox, Edge, Safari 16+). Discord and Telegram play WebM inline; iMessage prefers MP4 — see our GIF→MP4 tool.

Are my files uploaded?

No. The conversion runs entirely inside your browser via WebAssembly.

GIF to WebM Converter

Convert an animated GIF into a WebM (VP9) video for vastly smaller file sizes on the web. Excellent for blog hero loops and chat reactions. Everything runs in your browser via ffmpeg.wasm.

100% client-side · ffmpeg.wasm · no upload

Animated GIF

Quality (CRF) Preserve alpha channel

Pick a GIF file to begin.

How to convert GIF to WebM

Pick your .gif file.
Pick a quality preset. CRF 32 is a sane VP9 default.
Enable alpha if your GIF uses transparency (uses yuva420p, slightly larger).
Press Convert to WebM, wait, download.

Common use cases

Web blog heroes — replace a 5 MB GIF with a 200 KB looping WebM.
Discord / Telegram reactions where WebM plays inline.
Site speed wins on mobile, no extra bandwidth tax.

Frequently asked questions

Will Safari play WebM?

Safari 16+ on macOS and iOS plays VP9 WebM. For older Safari support, use MP4 instead — see GIF to MP4.

Why does encoding take a while?

VP9 is computationally heavier than H.264. Worth it for size: WebM is often 30–50% smaller than MP4 at the same quality.

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