ToolBox

ICO File Viewer

Open ICO File

Upload a .ico file to see all the different sizes and resolutions hidden inside.

What is an ICO File Viewer?

An ICO File Viewer is a specialized utility that allows you to "peek" inside Windows Icon containers. Unlike standard image viewers that only show one version of an icon, our viewer extracts every hidden layer—including different resolutions (from 16x16 to 256x256) and color depths. This is essential for developers and designers who need to verify favicon assets or extract high-quality transparent PNGs from existing system icons.

How to Use the ICO Viewer

  • 1Upload: Select your .ico file from your computer or drag and drop it into the viewer.
  • 2Inspect: Automatically view all embedded image sizes, dimensions, and file sizes in a clean gallery.
  • 3Extract: Click the download button on any specific icon size to save it as a standalone transparent PNG.