ICO converter
Free online ICO converter: upload an image and generate a multi-size .ico icon in one click, with center-crop or transparent padding — perfect for website favicons and app icons. All in your browser.
Features
- Turn an image into a multi-size .ico icon in one click
- Center-crop or transparent-padding fill modes
- Built-in common sizes: 16 / 32 / 48 / 64 / 128 / 256
- Great for website favicons and app icons — all in your browser
How to use
- Upload an image (PNG / JPG / WebP etc.)
- Pick the icon sizes you need (multi-select)
- Choose the fill mode (center crop / fit & pad)
- Click “Start” and download the .ico
FAQ
What size should a favicon be?
Select 16, 32 and 48 to cover most cases; a multi-size .ico keeps the icon sharp in browsers and on the desktop.
What is the difference between ICO and PNG?
.ico is the traditional Windows and favicon format that can hold multiple sizes in one file; PNG is best for a single high-resolution icon.
Is the transparent background kept?
Yes. “Fit & pad” keeps the whole image and adds transparent padding on the short sides, ideal for transparent icons.