Favicon Generator Online

A browser tab without a favicon looks like an amateur, untrustworthy website. But generating the exact 16x16 pixel .ico file that legacy browsers demand is annoying if you only have a massive PNG logo. This tool is built to automatically handle the resizing and format conversion required for proper HTML headers.

Canvas Downsampling

When you upload a logo, the tool loads the image into a hidden HTML5 <canvas> element. It uses a mathematical downsampling algorithm to shrink your image into the standard sizes needed for desktop tabs (16x16 and 32x32), as well as larger sizes needed for Apple and Android mobile home screens. The generation happens instantly on your device.

The Legacy .ico Format

Modern browsers (like Chrome and Safari) perfectly support standard .png favicons. However, legacy browsers and certain RSS feed readers still strictly look for a file named favicon.ico in the root directory. This generator outputs both formats, ensuring your branding is completely bulletproof across all devices.

The Dark Mode Problem

If you upload a logo with a solid white background, it will look like a glaring white box when a user has their browser set to Dark Mode. Always use a source PNG image with a fully transparent background to ensure the favicon blends smoothly into the user's OS theme.