Convert PNG to ICO
Drop a PNG logo or mark and download an .ico file for use as a favicon, browser-tab icon, or shortcut. PNG is the best favicon source because it is lossless and keeps transparency, both of which carry into the icon.
The converter writes a single icon. If the longest side is larger than 256px, the image is scaled down to fit within 256px, the practical ceiling for an ICO.
Get a clean favicon
- Start square. A 1:1 PNG keeps the icon balanced once constrained.
- Keep it bold. Favicons render as small as
16px, so simple, high-contrast shapes read far better than fine lines or small text. - Use a transparent background so the icon sits cleanly on different tab and toolbar colors.
Batch and privacy
Convert several marks at once and use Download all as ZIP for the set. The ICO is written by an in-browser engine; nothing is uploaded, and source metadata is dropped on export.