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GeekFormat

ICO Icon Generator

Click to upload pictures

It is recommended that square images be used to get the best result.

Output size

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Windows common sizes

16px
32px
48px
64px
128px
256px

Upload image to show preview

Convert images into ICO files online for favicons, desktop icons, and multi-size website icon packages.

Related

Features

  • ICO conversion workflow: turn common image files into standard ICO icons for websites and apps
  • Multi-size icon output: prepare favicon packages and icon sets for different browser and desktop uses
  • Transparent-background friendly: keep cleaner icon edges for logos, brand marks, and UI assets
  • Developer-ready export: download icon results quickly for deployment, packaging, and testing

FAQ

What's the difference between an ICO icon and a favicon? Does my site need ICO?

A favicon is the tiny icon in your browser tab, while ICO is the universal format that works across all browsers, Windows and macOS. Using ICO ensures faster loading and crisp display – no more blurry or missing icons.

Which image formats can I convert to ICO?

PNG, JPG and WEBP are all supported with one click. We recommend using transparent PNG files for clean ICO icons without white borders and in professional quality.

What ICO sizes can I generate? Can I create multiple sizes at once?

All standard sizes from 8×8 to 256×256 are available: 16×16, 32×32, 48×48, 64×64, 128×128, 256×256. Select multiple sizes and download them together in one bundle – perfect for any platform.

Will the generated icons look blurry or pixelated?

Our HD rendering algorithm specifically optimizes small icon details. No compression loss, clean edges and true-to-original colors. Icons stay sharp and clear at every size.

How do I quickly create a favicon without software?

No Photoshop or design program needed. Generate ICO icons directly in your browser – free, no watermark and dead simple. Perfect for webmasters, content creators and developers.

Is online ICO generation safe? Will my images stay private?

All processing happens locally in your browser. Images are never sent to any server and nothing is stored. Complete privacy protection for your graphic materials.