ICO to WebP

Free ICO to WebP converter - convert in your browser, no upload, no sign-up.

100% free. Runs entirely in your browser - your files and data never leave your device and nothing is uploaded to any server.

upload_file

Drop ICO files here or click to upload

Supports multiple files

Jump to the next useful tool without leaving your flow.

See more

About this tool

ICO to WebP converts an icon into a compact, transparent web image - useful when you want to show an app or site icon on a web page, in a gallery or in a CMS that does not accept ICO. The largest image in the ICO is converted and transparency is preserved. The largest image in the ICO becomes a WebP, usually smaller than the original, with transparency intact.

How to use this tool

  1. Add the ICO fileDrop in a site or app icon.
  2. Convert the largest sizeThe biggest image inside the ICO is converted to a transparent WebP.
  3. Use it on your siteDownload the WebP and add it to a page, a gallery or your CMS.

Icons on web pages

ICO files are meant for browsers' tabs and Windows, not for page content. WebP is accepted by modern browsers and most website builders and keeps the icon transparent at a small file size. For the favicon itself, many sites now provide PNG or SVG icons alongside favicon.ico.

Using icons on a web page

Browsers display favicons from the ICO file automatically, but if you want to show an app or site icon inside a page - in a list of integrations, a download page or a CMS gallery - a WebP is lighter and better supported by content tools than an ICO.

Add width and height attributes when you place the image, so the layout does not shift while it loads, and keep the original ICO for the favicon itself.

Key features

  • Shows app and site icons on web pages that reject ICO.
  • Small, transparent files that load quickly.

Common uses

  • Showing app icons on a website.
  • Adding icons to a CMS gallery.
  • Lightweight icon images for docs.

Tips for better results

  • Check the source size before enlarging.
  • Keep transparency for icons.

Mistakes to avoid

  • Using a tiny icon as a large image.
  • Replacing favicon.ico with WebP without testing.

Supported formats

  • ICO
  • WebP

Frequently asked questions

Yes - the icon keeps its transparent background in the WebP.

Some browsers support it, but ICO, PNG or SVG are the safer favicon formats.

The largest image in the ICO.

WebP is a lossy format, so a small amount of detail is discarded. At the quality this tool uses that is invisible on a photograph, but fine text and sharp edges - screenshots especially - can soften slightly.

Files usually come out noticeably smaller, because WebP compresses much harder than ICO.

Related guides