Create real multi-size .ico files from PNG, JPG, WebP or SVG: choose 16, 32, 48, 64, 128 and 256 px. Works for website favicons and Windows icons, in your browser.
Works in your browser. What you paste or upload is processed on your device.
Choose a PNG, JPG, WebP or SVG. A square logo at 256 px or larger gives the best result.
Tick the sizes to include. Favicon set gives 16, 32 and 48 px; Windows app icons also need 256 px.
For a non-square image, Fit keeps the whole picture with transparent edges, and Crop to square fills the icon.
Press Create ICO and download the .ico file, or a ZIP when you converted several images.
An ICO file is a small container that holds the same icon at several sizes, so Windows and browsers can pick the sharpest one for each place it appears: 16 px in a browser tab, 32 or 48 px in lists and on the taskbar, 256 px on the desktop. Renaming a PNG to .ico does not make one.
This tool builds a genuine multi-size ICO in your browser. Choose any of 16, 32, 48, 64, 128 and 256 px; each size is scaled from your image in steps for clean small icons, saved as a PNG with full transparency, and written into the ICO container. Non-square images are either fitted with transparent edges or cropped to a square. SVG logos are drawn fresh at every size, so even 16 px stays crisp. Convert up to 30 images per run, one .ico per image.
Limits: icons are stored as PNG entries, which Windows Vista and later, macOS and every current browser read. Windows XP and some very old software only read bitmap icons. A source image smaller than the largest size you pick is enlarged and looks soft, and the preview tells you when that happens.
Windows shortcuts, installers, desktop apps and the classic favicon.ico all need a proper ICO file. Getting the small sizes right matters most: a 256 px logo squeezed into 16 px by the operating system often looks blurry, while a 16 px version made for that size stays clear.
Something else? Ask the team
For a website favicon.ico, 16, 32 and 48 px is enough. For a Windows program or shortcut icon, include 16, 32, 48 and 256 px; 64 and 128 px help on high-DPI screens.
No. A renamed PNG is still a PNG, and Windows will often refuse it as an icon. This tool writes the real ICO structure with a directory of sizes, which Windows and browsers expect.
Yes. Every size is stored as a 32-bit PNG inside the ICO, so transparent areas stay transparent.
Yes. JPG has no transparency, so the icon keeps the JPG's own background. If you want a see-through icon, start from a PNG or SVG with a transparent background.
Right-click the shortcut or folder, open Properties, choose Change Icon (under Shortcut or Customize) and browse to the .ico file you downloaded.
Probably not. The sizes are stored as PNG images inside the ICO, which Windows Vista and later read but Windows XP does not. Every current browser and operating system reads them.
No. The ICO is built in your browser and saved straight to your device.
You get one free run of this tool per day, with no account. After that, each run costs 5 credits from a free AI Rank Lab account (1 credit = 1 US cent). One run is one press of the main button, however many files are in it.
Each one opens on its own page and works straight away, with no sign-up.
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