Convert Images to ICO Format
Free online tool to convert any image to .ico favicon files.
Generate multiple sizes in seconds, all in your browser. No login required.
How to Convert Images to ICO Format
Free online favicon generator with no registration required. All processing happens in your browser for complete privacy and security.
1. Upload Your Image
Click or drag to upload any image file. Supports PNG, JPG, GIF, WebP and other formats. Preview appears instantly.
2. Generate Favicons
Click 'Generate ICO Files' to create a standard favicon.ico plus 7 individual sizes (16×16 to 256×256 pixels).
3. Download Results
Download individual files or click 'Download All' to get everything in a ZIP archive. Each file is optimized for best quality.
Frequently Asked Questions
Everything you need to know about converting images to favicon ICO format.
01What image formats can I upload?
All common formats are supported including PNG, JPG, JPEG, GIF, WebP, BMP and more. For best results with transparent backgrounds, we recommend using PNG format. This ensures your favicon maintains clarity and professionalism across all sizes.
02What sizes are generated?
The tool automatically creates 8 files: one standard favicon.ico containing multiple resolutions (16×16, 32×32, 48×48) plus 7 individual size files (16×16, 24×24, 32×32, 48×48, 64×64, 128×128, 256×256 pixels). This ensures compatibility across all platforms and devices.
03Is my data secure and private?
Absolutely! All processing happens entirely in your browser using client-side JavaScript. Your images never leave your device or get uploaded to any server. We don't collect, store, or have access to your images at any point.
04Can I use the generated files commercially?
Yes! All generated ICO files belong entirely to you. Use them freely for personal projects, commercial websites, client work, or any other purpose without restrictions or attribution requirements.
05What's the difference between ICO and PNG?
ICO is a specialized format designed for favicons and system icons that can contain multiple image sizes in a single file. Browsers and operating systems automatically select the appropriate size for display. PNG is a general-purpose web format. ICO files ensure optimal favicon display across all platforms.
06Why generate multiple sizes?
Different devices and contexts require different icon dimensions. Browser tabs use 16×16 pixels, desktop shortcuts display 32×32 or 48×48, while high-DPI Retina displays need 128×128 or 256×256 pixels. Multiple sizes ensure your favicon looks sharp everywhere.
07How fast is the conversion?
Conversion is extremely fast—typically 1-3 seconds depending on your image size and device. Since processing happens locally in your browser without server uploads, speed depends on your device's performance. Most users generate all 8 files almost instantly with no waiting for uploads or downloads.