// ABOUT GIF
GIF is a legacy format dating to 1987 that supports animation and simple binary transparency. It is limited to a palette of 256 colours per frame, which means photographic content will undergo colour quantisation. Despite its age, GIF remains ubiquitous for short animations and reaction images across messaging platforms and social media.
// ABOUT ICO
ICO is the standard Windows icon container format used for favicons and application icons. A single ICO file can embed multiple resolutions (16x16, 32x32, 48x48, 256x256) so the operating system or browser can select the most appropriate size. ICO is the required format for the classic favicon.ico file that browsers request from every website.
// WHY CONVERT
Converting GIF to ICO is useful when you need your image in a format suited for website favicons, Windows desktop application icons, Windows Explorer thumbnails, and shortcut icons. Image Toolz runs the entire conversion directly in your browser. Nothing is uploaded to any server — your files remain completely private on your device. The tool handles images up to 200 MB and most conversions complete in under a second.
// FAQ
What is GIF?
GIF is a legacy format limited to 256 colours with support for animation. Its simple transparency model makes it suitable for icon-like graphics.
What is ICO?
ICO is the icon container format for Windows and browsers. It is used for favicons and desktop application icons.
Will converting GIF to ICO lose quality?
Minimal change. GIF is already limited to 256 colours, and ICO at small sizes will use the same palette. The main change is resizing to icon dimensions.
Is it safe to convert my files here?
Yes. All conversion runs entirely in your browser. Your images are never uploaded to any server and nothing leaves your device.