Favicore
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PNG to ICO converter for favicons and app icons
Turn PNG files into multi-size ICO outputs for browser favicons, Windows shortcuts and launcher icons. The pipeline keeps conversion async so larger batches do not block the request path.
Why teams use this workflow
- Builds square ICO outputs with embedded 16, 32, 48, 64, 128 and 256 sizes.
- Works well for favicon updates, Windows apps and internal tools.
- Supports drag-and-drop uploads and direct image URLs when the source is public.
Common use cases
- Website favicon replacement
- Windows application icon export
- Internal tools and admin dashboards
How it works
Upload a PNG file
Choose ICO as the target format
Start the job and download when status becomes DONE
FAQ
Does ICO require square images?
Yes. ICO is normalized to square internally. Non-square sources are converted into a square icon layout during processing.
Can I use the ICO output as a favicon?
Yes. This is one of the primary use cases for the PNG to ICO flow.
Does it create multiple icon sizes in one file?
Yes. The ICO output contains multiple embedded sizes for compatibility.