Convert ICO icon files to PNG with transparency preserved. Extracts the largest embedded image from multi-size ICO files. Shows ICO metadata (sizes, bit depth). Batch convert up to 10 files at once.
Click or drag up to 10 ICO files onto the upload area. The tool reads the ICO binary format and extracts the largest embedded image (typically 256×256px or 48×48px).
Each ICO file is previewed as a PNG. The tool shows detected ICO metadata including the sizes embedded in the file and the bit depth.
Click Download PNG for each file, or Download All as ZIP to get all converted PNGs in one archive. Transparency is fully preserved in the output PNG.
ICO is a container format used for Windows application icons and website favicons. A single ICO file can contain multiple versions of the same image at different sizes (typically 16×16, 32×32, 48×48, 256×256) and bit depths. Web browsers use the 16×16 and 32×32 sizes for browser tabs; the 256×256 size is used on Windows desktops.
This tool extracts the largest image embedded in the ICO file. For modern ICO files, this is typically the 256×256 PNG-compressed image. For older ICO files without large sizes, the largest available size (48×48 or 32×32) is extracted.
Yes. Modern ICO files use 32-bit ARGB colour, providing full alpha channel transparency. This transparency is preserved when extracting to PNG. Older 8-bit ICO files with palette-based transparency are also handled.
Windows uses ICO files for application icons and shortcut overlays. Web browsers use favicon.ico (placed at the root of a domain) to display site icons in tabs and bookmarks. Modern browsers also support PNG and SVG favicons, but ICO remains the most universally supported format across all browsers including older IE versions.
Yes — use the PNG to ICO Converter tool on this hub to convert any PNG back to a multi-size ICO file. The PNG to ICO tool embeds multiple sizes (16×16 through 256×256) in a single ICO container.
If an ICO file contains only small sizes (16×16 or 32×32), the extracted PNG will be small. Older ICO files created for Windows XP and earlier often lacked 256×256 images. Use the PNG to ICO converter to create a modern multi-size ICO from a high-resolution PNG source.
