Turn PNG, JPG, GIF, or WEBP into a multi-size ICO in the browser—ideal for favicons and shortcut icons
Convert PNG, JPG and WEBP images to ICO online. Create transparent multi-resolution favicon files from 16×16 to 256×256 locally in your browser.
How to use
What does this tool do?
It builds a Windows ICO file locally in your browser from common bitmap formats, with multiple square sizes—handy for favicons and Windows-style shortcut icons.
Steps
- Choose a file with the button or drag it into the left panel.
- Use the Crop tab to set the area, then Remove BG to click away the background inside it; both tabs share one image.
- Select sizes (e.g. 16, 32, 48), choose transparent or solid background, and set the download base name (.ico is added if missing).
- Click “Generate ICO” to render previews for each size on the right.
- Click “Download ICO” to save the file.
Supported inputs
- PNG: alpha channel preserved when transparency is enabled.
- JPG/JPEG: good for photos.
- GIF and WEBP: decoded as a still frame for ICO output.
Size tips
- Tabs and small UI often use 16×16 and 32×32.
- Checking several sizes in one ICO helps crisp rendering on high-DPI displays.
Using it on a site
After placing favicon.ico at the web root, many browsers request /favicon.ico automatically; you can also point link rel="icon" to any path you prefer.