PNG to ICO Converter

How to convert PNG to ICO

1. Upload a square PNG, ideally 256 × 256 pixels or larger with a transparent background.
2. Choose which icon sizes to include, from 16 to 256 pixels.
3. Click Convert to build the multi-size icon.
4. Download the .ico file and add it to your website or use it for a shortcut.

What's inside an ICO file

An ICO file is a container holding the same icon at several sizes. Browsers use 16 × 16 or 32 × 32 for tabs and bookmarks, Windows uses 32 and 48 pixels in Explorer and on the taskbar, and 256 × 256 for large icon views. This converter resizes your PNG to each selected size with high-quality resampling and stores each one as PNG data inside the ICO, a variant supported by Windows Vista and later and by all modern browsers.

PNG to ICO works best with a square PNG on a transparent background, which keeps the icon crisp at small sizes.

Preparing your source image

Start with a square PNG at least 256 pixels wide with a transparent background. Images that are not square are fitted into the square with transparent padding rather than stretched. Keep the design simple: fine detail and thin lines disappear at 16 pixels, so a bold symbol or a single letter often works better than a full logo.

Using the icon as a favicon

Upload the file as favicon.ico to the root of your website, or reference it with <link rel='icon' href='/favicon.ico'>. Many sites also add a PNG or SVG favicon and an Apple touch icon; you can create those with SVG to PNG and Resize Image.

Frequently asked questions