キレ

PNG to ICO

In your browser, no upload

PNG → ICO

no quality loss · camera metadata removed

Convert

PNG → ICO

Specification

6 rows
PNG to ICO specification
ItemValueNotes
InputPNG.png
OutputICO.ico
QualityRedrawn per size16 · 32 · 48 · 256 px
TransparencyKept
Camera metadataRemovedEXIF and location data are not carried over
Processed inThis browserNot sent to a server

What changes

3
What happens, and why

PNG is a lossless format. Every pixel is kept exactly and it stores transparency. Photographs come out far larger than JPG. Screenshots, logo and icon work, and exports from design tools produce it. ICO is the format for Windows icons and website favicons. It holds several small sizes, such as 16, 32, 48 and 256 px, in one file.

A favicon ICO should hold four sizes, 16, 32, 48 and 256 px, in one file so browsers and Windows each pick the one they need. A picture that is not square is padded with transparency.

The file is opened and converted inside this browser and never sent to a server. The image is redrawn at four sizes and packed into one file. Camera metadata (EXIF) is not carried over, so no location data remains in the result. You can add several files at once.

FAQ

3
Does the quality get worse

The image is redrawn at icon sizes, so the pixels differ from the source. For a favicon that is what is wanted.

What happens to a transparent background

ICO stores transparency too, so it is kept as it is.

Where does my file go

Nowhere. The conversion finishes inside this browser, and camera metadata (EXIF, location) is not carried into the result.

Related specs

4