Compress WebP Online Free
Optimize WebP images, or convert JPG and PNG to WebP — the smallest widely-supported image format on the web. All in your browser, nothing uploaded.
Why WebP is the best default for web images
WebP gives you JPEG-level convenience with meaningfully smaller files: 25–35% lighter at the same visual quality, plus transparency support that JPEG lacks. For a page with a dozen images, switching to WebP routinely cuts total image weight by a third — a direct improvement to load time and Core Web Vitals.
Re-compressing existing WebP files
WebP images exported by design tools or downloaded from the web are often saved at unnecessarily high quality. Drop them here, set quality to 75–80, and they typically shrink another 30–60%. Add a resize if their pixel dimensions exceed what your layout displays.
Converting JPG and PNG to WebP
This tool doubles as a converter: upload JPGs or PNGs, keep WebP selected, download. Photos convert with dramatic savings; PNG graphics with transparency keep their transparent background. The one case to skip WebP: images that must open in old desktop software or be embedded in emails — export those as JPEG instead.
Recommended settings
Web pages: quality 75–80, max width 1920 px for heroes and 1280 px for content images. Thumbnails: quality 70 — small images hide artifacts well. Graphics with transparency: quality 85+ keeps edges around transparent regions clean.
WebP FAQ
What makes WebP smaller than JPEG?+
WebP uses a newer, smarter encoder (derived from the VP8 video codec) with better prediction and entropy coding. At the same visual quality it typically produces files 25–35% smaller than JPEG.
Do all browsers support WebP?+
Every modern browser — Chrome, Firefox, Safari, Edge — has supported WebP for years. Only very old software (and some email clients) may not display it, which is when JPEG is the safer choice.
Can I convert JPG or PNG to WebP here?+
Yes. Drop any JPG or PNG in, keep WebP selected as the output format, and download. Transparency in PNGs is preserved.
Does WebP compression lose quality?+
In lossy mode (this tool), yes — like JPEG, it discards detail the eye rarely notices. At quality 75–85 photos remain visually indistinguishable while shrinking dramatically. Compare before/after on any thumbnail to verify.