Why Compress WebP?
WebP is already the most efficient image format for the web — but that doesn't mean every WebP file is optimized. Images exported from design tools, converted from other formats, or saved at maximum quality can still benefit from further compression.
WebP vs Other Formats
For text and pixel-exact work, use PNG output and inspect it. A smaller lossy WebP may alter pixels; this tool does not promise lossless WebP.
Check WebP support in the destination browser, app or email client; use JPG or PNG when needed.
WebP Compression Modes
- Re-encode WebP locally with adjustable lossy quality. This tool has no selectable pixel-exact lossless WebP mode; savings depend on the input.
- For text and pixel-exact work, use PNG output and inspect it. A smaller lossy WebP may alter pixels; this tool does not promise lossless WebP.
When to Use WebP
- Compare the actual downloaded size and appearance. There is no guaranteed reduction percentage.
- WebP supports transparency; check transparent edges and the downloaded output. This tool does not compress animations and rejects detected animated inputs.
- WebP supports transparency; check transparent edges and the downloaded output. This tool does not compress animations and rejects detected animated inputs.
- Mobile-first sites — smaller files = faster loads on cellular connections
When NOT to Use WebP
- Email campaigns — many email clients don't support WebP. Use JPG instead.
- Print production — print workflows typically require TIFF or high-quality JPG.
- Legacy system integration — some older CMS and tools can't process WebP.
Check WebP support in the destination browser, app or email client; use JPG or PNG when needed.