Image to ICO Converter – Convert Image Online (Free Tool)
Free online Image to ICO Converter tool to convert PNG and JPEG images to ICO format. Create favicons for websites from any image. All conversion happens locally in your browser.
Example Output
A proper multi-size ICO so each browser pulls the size it needs without downscaling.
favicon.ico (containing 16×16, 32×32, 48×48 entries)
What is Image to ICO Converter?
Image to ICO converts a source image into a Windows-format .ico file containing one or more sizes. Used for favicons (favicon.ico), Windows shortcuts, and legacy apps. Multi-size output ensures crisp rendering at every browser display size — no blurry downscales.
Why use this tool?
- Works offline after the first page load
- Lightweight page weight that loads quickly even on slow connections
- Works on desktop, tablet, and mobile in any modern browser
- Output preserves color profile and metadata except when stripping is explicitly requested
- Supports PNG, JPG, WebP, GIF, and SVG with consistent quality across formats
How to use
- Drop a PNG/JPG/SVG (square works best)
- Choose which sizes to include (16, 32, 48, 64, 128, 256 px)
- Click Convert — multi-size .ico file is generated locally
- Place at the root of your site as favicon.ico
Examples
Generate favicon.ico
Upload your square logo, include sizes 16, 32, 48 — drop the result at /favicon.ico and you're done.
Common use cases
- Generating favicons for legacy browser support
- Creating icons for Windows desktop shortcuts
- Producing multi-size icons for older apps
Troubleshooting
- ICO file size larger than expected.
- Each size adds bytes. Drop sizes you don't need (48 px is rarely required for web). For just web, 16 + 32 is enough; modern sites use PNG favicons instead.
Frequently Asked Questions
ICO is an image file format used for icons in Microsoft Windows. It can contain multiple sizes of the same icon in one file. ICO files are commonly used as favicons for websites.
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