Remove the white background from an ICO.

Drop the ICO; white is selected as the color to remove. Set tolerance to 10 to 20 percent for off-white and cream, turn on outer pixels only if the icon has white in it, and download.

Turn on outer pixels only. Only white connected to the edges goes; white text and highlights inside the icon stay.

Some tools flatten the alpha to white on export, and old formats had no alpha at all. Clear the white here and pack a 32-bit ICO with alpha.

0 to 5 percent for pure white; 15 to 25 for grey or cream. Preview mask shows what goes before you download.

Yes: 8-bit and 24-bit frames decode like any other, and the output is a modern PNG you can pack as a 32-bit ICO.

Drop the ICO, then pick the color to remove: click it in the preview or type its hex. Tolerance widens the match to nearby shades; 0 takes the exact color only and 10 to 20 catches anti-aliasing and off-whites. The result is a PNG with real alpha.

Turn on outer pixels only. Then only matching pixels connected to the edges go, so a white letter or highlight inside the icon stays. Preview mask shows exactly which pixels will be cleared before you download.

The largest frame of the ICO. A browser's canvas writes PNG, which every editor opens; to get an ICO back, pack the PNG with the PNG to ICO tool at the sizes you need.

No. The ICO is read and its frames decoded by JavaScript on your device; the page makes no request with your file. Load it, go offline and it still works.

No. The "Remove the white background from an ICO" tool is free and opens without a sign-in, an account or an install.

Up to 100 MB per file, the limit the tool states under its drop area. A larger file is refused with a plain message instead of being decoded.

No, it takes one file at a time. If you drop or choose several, only the first is used; run the tool again for the next one.

The edit is written as a PNG because PNG stores every pixel exactly, with a full alpha channel, so the result can be edited again without a second round of loss.

No. The browser decodes the image and the tool writes a new file from its pixels, so camera EXIF, GPS position and text chunks in the original are not copied into the result. Keep the original file if you need them.

No. The result has the same width and height in pixels as the source.

Closest to the "Remove the white background from an ICO" tool: ICO background remover, Remove a color from an ICO, Remove a white background from a PNG, Transparent favicon maker. Each opens on its own page, free and in the browser.

The "Remove the white background from an ICO" tool is one of 37 in its group. The group's page, /tools/ico, lists them all.

The tool is free. Its interface is built from shadcn.io's own components (Button, Input, Slider and the rest of the registry under /ui), which come in React, Vue, Svelte and Solid. Pro adds the blocks and templates for the product around it.