Browser-local favicon tool

PNG to ICO Converter for Favicons and App Icons

Turn a PNG into a real ICO file in your browser. Useful for website favicons, Windows shortcuts, and packaged app icons without uploading the source image.

Supported Format

Input: PNG / Output: ICO

A square PNG at 256x256 or above usually gives a cleaner favicon and desktop icon result after downscaling.

Current Status
Download Result

The generated ICO file will appear here after conversion. Then you can download it immediately or continue with another source image.

Why ICO still matters for favicons

Browsers can read PNG favicons, but ICO is still the safer choice when you want one file that works well across browser tabs, bookmarks, Windows shortcuts, and older environments. The point of ICO is not visual magic. The point is compatibility and packaging: one icon file that fits several contexts cleanly.

What this converter actually produces

This page turns a PNG into an ICO file in the browser using the existing client-side encoder. Nothing is uploaded, and the result is meant for practical use: a favicon, a desktop shortcut icon, or an app asset that expects the `.ico` container format.

Start with the right PNG

A square PNG works best. If the source icon has thin strokes, tiny text, or no breathing room around the edges, it may look muddy once scaled down. In most cases, a larger PNG with simple shapes and a bit of padding gives a cleaner favicon than an over-detailed image.

When to use ICO instead of PNG

Use ICO when you specifically need `favicon.ico`, when a Windows-oriented workflow expects `.ico`, or when you want one icon file that feels conventional across browsers and desktop surfaces. If your workflow only targets modern web browsers, PNG can still be enough, but ICO remains the safer default for broad compatibility.

How to use the output

  1. Choose a square PNG with enough resolution for downscaling.
  2. Upload the file by click or drag and drop.
  3. Convert to ICO once the preview and file info look right.
  4. Download the result and place it where your site or app expects an icon file.

Privacy and processing

The conversion runs locally in your browser through the existing JavaScript pipeline. That keeps the flow fast for one-off icon work and avoids sending source files to a remote conversion service.

Frequently Asked Questions

What is a favicon?

A favicon is the small icon that appears in browser tabs, bookmarks, and browser history next to your website name. It helps users quickly identify your site among multiple open tabs. Favicons are traditionally stored in ICO format, though modern browsers also support PNG, SVG, and WebP favicons.

What sizes does this ICO converter generate?

This tool generates a multi-size ICO file containing three icon sizes: 16x16 pixels (browser tab size), 32x32 pixels (taskbar and window title size), and 48x48 pixels (desktop shortcut size). All three sizes are embedded in a single .ico file.

How do I add a favicon to my website?

Place the favicon.ico file in your website root directory and add the following HTML to your page head: link rel=icon type=image/x-icon href=/favicon.ico. Most browsers will also automatically look for favicon.ico in the root directory even without the link tag.

What PNG size should I use as input?

For best results, use a square PNG image. An image of at least 48x48 pixels works, but 512x512 or larger is recommended since the tool will scale it down to the required favicon sizes with better quality from a larger source image.

Is this ICO generator free?

Yes, completely free. No registration, no account, no watermarks. The ICO encoder runs in your browser using a custom JavaScript encoder, so your PNG is never uploaded to any server.

JPG to ICO

Use this when the starting artwork is a JPG and the destination still needs an ICO container.
ICO to PNG

Extract an ICO into PNG when you need to edit the icon artwork in a normal image workflow.
PNG to WebP

Keep transparency but switch to a smaller web-delivery format instead of an icon container.
Image Compressor

Reduce file size when the format is already correct and the real issue is upload or page weight.