Convert PNG to ICO

What this converter actually does

An ICO file is a container. Inside it can sit several PNG (or BMP) images at different resolutions. When Windows or a browser asks for a favicon, it can pick the layer closest to the size it needs instead of upscaling a single tiny bitmap.

This tool takes your source image, letterboxes it into each selected square size, encodes those frames as PNG, then packs them into one .ico download. That is different from renaming a PNG to .ico, which some browsers tolerate but is not a real multi-resolution icon.

When you still need favicon.ico

• Legacy browsers and older intranet tools that only request /favicon.ico
• Windows shortcuts and some desktop wrappers
• CMS themes that hard-code a root ICO path
• As a belt-and-suspenders fallback beside SVG and PNG <link rel="icon"> tags

For a full modern stack (SVG + PNG + apple-touch + PWA), use the main favicon generator. Use this page when you already have a logo PNG and only need the ICO container.

Recommended layer sizes

How to convert PNG to ICO here

1. Upload a square-ish PNG, JPG, or WebP (512×512 or larger is best).
2. Select the layers you want embedded.
3. Download the .ico file.
4. Upload it to your site root as /favicon.ico and keep your PNG/SVG link tags for modern browsers.

Limitations (read before you ship)

• Very detailed logos may look muddy at 16×16 — simplify or test before deploying.
• Transparent PNGs are supported, but some Windows contexts fill transparency with a solid colour.
• ICO alone is not enough for iOS home screens or Android PWA installs — see apple-touch-icon and Android Chrome sizes.
• If Google Search still shows a globe, the problem is often crawlability, not ICO — read favicon not showing in Google Search.

FAQ