Favicon Generator
Quick answer
Upload or paste artwork—the tool outputs resized squares you can wire into `<link rel="icon">` tags.
For a related estimate, see Favicon Checker.
Explore further: Image Color Palette Extractor · Color Name Identifier
Sharpness
Downscaling with proper resampling beats shrinking in CSS—tiny icons need crisp edges and centered glyphs.
Explore further: Accessible Color Palette · Color Blindness Simulator
A favicon pack includes small square PNGs and sometimes ICO containers so crisp icons show at many DPIs. Use it when you are shipping a new brand icon or updating PWA manifests.
How to use this calculator
- Open the tool: Start from a high-resolution square master (≥512px).
- Tune inputs: Generate 16/32/48 (and maskable if offered).
- Read the output: Upload assets to your CDN and update head links.
Real-world examples
- 16×16 tab icon: Simplify artwork—fine lines disappear at small sizes.
- Apple touch icon: Often 180×180 PNG referenced in `apple-touch-icon`.
Explore further: Ai Api Cost Calculator
Tips & gotchas
Test on both light and dark browser chrome—transparent icons can disappear on dark themes.
FAQ
ICO vs PNG?
ICO can bundle sizes; modern sites often ship multiple PNGs—either works if linked correctly.
Does this tool send my text to a server?
Calciverse runs in your browser; we do not store your inputs on our servers for these utilities. Anything that uses network APIs (for example DNS lookup) only sends what you explicitly request.
Why do results differ from another site?
Rounding, defaults, and implementation details (color spaces, tokenizers, DNS resolvers) can differ. Compare definitions, not just the headline number.