ICO at a glance
File extension.ico
MIME typeimage/x-icon
TransparencyYes
AnimationNo
LosslessYes
LossyNo
When should you use ICO?
ICO can be useful in specialised workflows. Confirm recipient and browser support before choosing it for a public web asset.
Compatibility
FreeImageKit reads ICO images and creates a single PNG-backed icon up to 256 pixels.
Convert ICO images locally
FreeImageKit has a local decode path for ICO. Exports remove source metadata, and still-image routes do not preserve animation or extra pages.