Convert PNG to ICO Online — Free
Runs 100% in your browser — your files never leave your device.
The classic favicon pipeline: design in PNG, ship as ICO. This converter wraps your PNG in a proper ICO container, keeping the embedded image as PNG so quality survives — scaled to 256×256 if larger. Runs entirely in your browser.
How it works
- 1
Drop your PNG file
Drag a PNG into the box, or click to browse. Nothing is uploaded.
- 2
Convert to ICO
The PNG is embedded in an icon container — the Vista+ convention.
- 3
Download the result
Save the ICO with one click — ready for favicons and shortcuts.
About this tool
Converting PNG to ICO
A PNG file png stores every pixel losslessly and supports full transparency, which makes it the standard for screenshots, logos, and graphics — at the cost of larger files for photographs.. ICO ico is the windows icon container: a single file holding the same image at several sizes so icons render crisply at every scale. Converting moves your image from the first set of trade-offs to the second: file size shifts with the format's compression style, transparency survives where supported, and pixel data is re-mapped to the target format exactly.
What to check after converting
Open the result and check the two things conversion can change: transparency and size. Transparency is carried over exactly where the target format supports it. Your original file stays untouched on your device either way, and the download is a brand-new file.
Frequently asked questions
Is this conversion lossless?
Yes — both PNG and ICO store pixels losslessly, so the conversion moves your image between formats without touching a single value. The file size changes; the pixels do not.
Is my image uploaded anywhere?
No — the conversion runs entirely in your browser. The image is processed on your device and never sent to any server, which you can verify by disconnecting after the page loads.
Why convert PNG to ICO instead of the other way around?
The direction follows what the destination needs: Windows icons and favicons versus graphics, screenshots, and anything needing transparency. Converting back is always available — but each lossy hop re-encodes the image, so keep the highest-quality format as your working copy and convert toward the destination.