File Format
ICO .ico
- MIME
- image/x-icon
- Type
- image
What is a ICO file?
Windows icon container holding several PNG/BMP sizes — still the safest favicon format.
Strengths
- Multiple sizes in one file
Trade-offs
- Windows-centric
Open & convert ICO files
Free Sada Files tools that work with ICO — most run privately in your browser.