ICO Converter
Create multi‑resolution Windows icons (Favicon). Upload any image, choose sizes, download .ico file. 100% client‑side.
Square images work best
Preview
📏 Icon Resolutions (px)
📖 How to Create an ICO Favicon – Step by Step
- Step 1: Upload an image (PNG, JPG, WebP) – square images are recommended for best results.
- Step 2: Select the icon sizes you need (16px to 256px). At least one size must be selected.
- Step 3: Click “Convert to ICO” – the tool will generate a multi‑resolution ICO file.
- Step 4: Press “Download ICO File” to save the icon to your device.
- Step 5: Use the ICO as a website favicon, desktop shortcut icon, or application resource.
💡 Why a Multi‑Resolution ICO?
- ✔️ Windows and browsers automatically pick the best size (e.g., 16px for taskbar, 32px for file explorer, 256px for modern screens).
- ✔️ One file contains all resolutions – no need to manage separate images.
- ✔️ 100% local – your images never leave your device, completely private.
💡 Pro Tip: For optimal favicon display across all devices, include sizes 16, 32, 48, and 128. The ICO format supports up to 256×256 for high‑DPI monitors.
🔒 100% client‑side • Your images never uploaded • Unlimited conversions • Zero tracking