Convert GIF to ICO
Turn your GIF images into Windows icons and favicons. Perfect for branding and web development.
ToFormat — free online converter
Upload your files
Max file size: 30MB · Up to 20 files at once
Why ToFormat?
Multi‑Size ICO
Generate ICO files with multiple resolutions (16×16 to 256×256) from a single GIF. All sizes stored in one file — ideal for Windows icons. For animated GIFs, we use the first frame.
Transparency Support
GIF’s 1‑bit transparency is preserved in ICO (32‑bit mode). Your icons with transparent backgrounds stay crisp.
Batch Processing
Upload up to 20 GIF files at once. We'll convert each to ICO and package them in a ZIP for easy download.
About the Formats
🎞️ What is GIF?
GIF (Graphics Interchange Format), created in 1987, is a classic format for simple animations and low‑color graphics. It uses a 256‑color palette and supports 1‑bit transparency. Despite its age, GIF remains the most compatible animation format.
All GIF conversion tools →🖱️ What is ICO?
ICO is the icon format used by Microsoft Windows and for website favicons. It can store multiple image sizes in one file, with support for transparency (1‑bit and 8‑bit alpha). Created in the 1980s, it remains essential for branding.
All ICO conversion tools →How to Convert
Upload your GIF
Drag and drop your GIF files. You can upload up to 20 at once. For animated GIFs, we use the first frame.
Choose icon sizes
Select which resolutions to include (16, 32, 48, 64, 128, 256). Default includes all standard sizes.
Download ICO
Your ICO files are ready. Download individually or as ZIP. Files auto‑delete in 10 minutes.
When to Convert GIF to ICO
🌐 Website Favicon
Every website needs a favicon.ico. Convert your GIF logo or animation (first frame) to ICO and place it in your site root — works in all browsers.
💡 For modern formats: try GIF to PNG →💻 Windows Applications
Desktop apps require ICO icons for executables and shortcuts. Convert GIF to ICO for professional software packaging.
💡 macOS icon: GIF to ICNS →📁 Folder Icons
Customize folder icons on Windows. Convert any GIF image to ICO and assign it via folder properties.
💡 Linux icon: GIF to PNG →🎨 UI Design
Designers often need ICO exports for mockups and prototypes. Convert GIF to ICO for client deliveries.
💡 Vector source: GIF to SVG →Format Comparison
| Format | GIF | ICO |
|---|---|---|
| Compression | Lossless | Lossless |
| Transparency | Yes | Yes |
| File Size | Larger | Larger |
ICO is specialized for icons. For general purpose images, GIF to PNG or GIF to JPG are better choices. For macOS icons, try GIF to ICNS.
💡 Pro Tips
- Include 16, 32, and 48px sizes at minimum — they cover most Windows display settings and favicon use.
- For highest quality, start with a square GIF image. ICO works best with square proportions.
- ICO supports 8‑bit transparency (256 levels) in 32‑bit mode. We preserve transparency from your GIF (first frame).
- If your GIF is animated, only the first frame will be used — ICO is static. For multi‑frame icons, consider GIF to WebP.
- Browsers request favicon.ico automatically. Place the file in your root directory for instant branding.
- For Retina displays, include 64×64 or 128×128 sizes — they scale better on high‑DPI screens.
- You can also convert ICO back to GIF with our ICO to GIF converter for web use.
How GIF to ICO Conversion Works
ICO files are containers holding one or more bitmap images in different resolutions. When you convert GIF to ICO, our servers decode the first frame of your GIF (if animated) to raw pixels, resize it to your chosen dimensions (preserving aspect ratio), and encode each size as a BMP‑like image inside the ICO container. Transparency from the GIF (1‑bit) is mapped to an alpha channel in 32‑bit icons.
The result is a single ICO file containing multiple resolutions of your image, ready to be used as a Windows icon or website favicon. The process is fast and server‑side. Files are automatically deleted after 10 minutes.
GIF vs ICO: Different Purposes
GIF is a versatile format for web animations and simple graphics. ICO is a container format specifically for icons and favicons. While GIF offers animation and wide compatibility, ICO is the only format universally recognized for Windows icons and website favicons.
Converting GIF to ICO is useful when you need a static, multi‑resolution icon derived from your GIF source. For animated icons, you would need other formats like WebP or APNG.
Best Practices for ICO Creation from GIF
Always include multiple sizes: 16×16 (small icons), 32×32 (standard), 48×48 (high‑DPI), and optionally 64×64, 128×128 for very high resolution. Modern Windows can scale down larger sizes, so including a 256×256 master ensures quality everywhere.
For favicons, 16, 32, and 48 are sufficient. Browsers will pick the best size automatically. If your GIF has transparency, it will be preserved in the ICO when you choose 32‑bit mode. Explore our ICO tools for more icon utilities.