Convert GIF to WebP
Convert GIF to WebP online, free and 100% in your browser. No upload, no signup, no size limit — WebAssembly does the work on your device.
How to convert an image
- Drop or pick your GIF file — or paste it with Ctrl/⌘+V.
- WebP is already selected as the target; tune the quality slider if you like (default 80).
- Convert, compare the before/after, and download. Animated GIFs are split into one WebP image per frame and packed as a ZIP.
Why convert to this format?
GIF is a 256-color format best known for simple animations, but heavy and low-fidelity for photos. WebP is a modern web format that is typically 25–35% smaller than JPG or PNG at the same quality, with transparency.
OptImg runs the same Rust codecs desktop tools use, compiled to WebAssembly, so you get desktop-grade WebP output at a sensible default (quality 80) — adjustable at any time — without ever uploading your image.
Everything happens locally: your GIF is decoded, re-encoded to WebP and handed straight back as a download. No server sees a single byte, which is why there's no queue and no file-size cap.
Frequently asked questions
- Is my GIF uploaded to a server?
- No. The GIF-to-WebP conversion runs entirely in your browser with WebAssembly — your file never leaves your device, there is no queue, and no size limit beyond your device's memory.
- What happens to an animated GIF?
- Each frame is extracted and converted to a separate WebP image, then delivered together as a ZIP — the classic GIF-to-WebP behavior. Animated WebP output isn't supported yet.
- Will converting GIF to WebP lose quality?
- WebP is lossy, tuned to a visually transparent default (quality 80) that you can raise or lower with the slider. If the conversion can't produce a smaller file than your original, we hand the original back instead.
- Is the GIF to WebP converter free?
- Yes — completely free, with no signup, no watermark and no cap on how many files you convert. There is nothing to install; it runs in your browser.