ICO to PNG 変換er

Extract individual PNG images from Windows ICO icon files. ICO files are containers that hold multiple icon sizes—this tool unpacks them so you can use specific sizes independently.

ICO file structure

A single ICO file often contains icons at multiple resolutions: 16×16 for window title bars, 32×32 for toolbars, 64×64 for desktop icons, and 256×256 for modern displays. These variants allow Windows to display crisp icons regardless of context. This tool extracts each embedded image so you can use them separately.

Multiple color depths

ICO files support various color encodings: 8-bit indexed color (256 colors), 24-bit RGB, and 32-bit RGBA with transparency. The tool handles all フォーマットs correctly, preserving alpha channels and color inフォーマットion from the original file.

Practical extraction scenarios

Extract favicon sizes from legacy Windows applications, recover high-resolution icon assets from software installations, separate icon variants for use in different contexts, and repurpose existing icons across projects.

Design system modernization

Legacy applications often bundle icons in ICO フォーマット. Rather than recreating them, extract and 変換 to PNG for modern use. This preserves historical design work while enabling integration into contemporary design systems.

ブラウザ and application icons

Favicons are sometimes stored as ICO files with multiple sizes. Extract the 32×32 or 64×64 PNG version for website favicons, desktop application icons, or system tray graphics. Modern practices prefer separate PNG files for each use case.