ICO to WebP Converter
Convert ICO images to WebP — runs entirely in your browser, with no upload.
About ICO to WebP Converter
ICO is the Windows icon container format, used mostly for website favicons. WebP is a modern Google format that compresses noticeably smaller than PNG or JPG at similar quality.
Converting ICO to WebP produces a much smaller file that every modern browser supports, which helps web pages load faster. Drop your file above and it is decoded and re-encoded as WebP entirely inside your browser, so even sensitive images never leave your device.
To use it, drop your ICO file into the upload area or click to pick one from disk. The conversion runs as a single pass — the ICO bytes are decoded into a pixel buffer and re-encoded as WebP at a high default quality (around 92%), giving a much smaller file that stays visually nearly identical to the source. Output dimensions match the source; to resize as well, run the image resizer before or after the conversion. A typical photo converts within a second or two on a modern device.