Image tools
Create a multi-size .ico favicon file from a transparent PNG without uploading the image.
Your transparent PNG preview will appear here.
Icon sizes
Selected sizes are bundled into one .ico file, not downloaded as separate files.
Resize mode
Use this converter when you need a real favicon.ico file for a website root, a Windows shortcut icon, or a browser context that still expects the ICO container format.
A single ICO file can hold several icon sizes together, so browsers can choose 16, 32, 48, or 256 pixel entries without you publishing each size separately.
The most common problem is starting with a logo that has thin strokes, tiny text, or too much empty space. Those details usually disappear at 16px and 32px.
Start with a transparent PNG that is at least 256 by 256 pixels. If the source is not square, use contain mode to preserve the full image with transparent padding, or cover mode to crop the image into a square.
A typical setup is a 512 x 512 transparent PNG logo converted into a favicon.ico with 16, 32, 48, and 256 pixel entries for browsers, pinned tabs, and desktop shortcuts.
Keep the downloaded ICO file at `/favicon.ico`, keep the original PNG for modern app icons, and test the smallest 16px version before publishing because that is where weak designs usually fail.
In practice, browsers will choose the smallest sharp entry they need for tabs, bookmarks, and pinned shortcuts. If the 16px version looks muddy, simplify the source PNG and generate the ICO again.
No. The conversion runs in your browser with Canvas APIs. The PNG is not sent to a server by this tool.
Yes. This converter can package several resized PNG images into one ICO file so different browsers and devices can choose an appropriate size.
Transparent PNGs are usually best for favicons because they keep the icon shape clean against browser UI and bookmarks.
Small favicon sizes are unforgiving. Simplify the logo, increase contrast, and avoid tiny lettering or thin outlines before converting.
Last updated: May 13, 2026
PNG to JPG Converter
Convert PNG images into JPG files with quality and background controls.
