What is an ICO file?

An ICO file is a specialized image format designed specifically for icons in Windows and web applications. Unlike standard image formats, a single ICO file can contain multiple versions of an image at different sizes and color depths, allowing systems to display the most appropriate version for any context. This makes ICO files essential for favicons, application icons, and anywhere consistent visual representation across different display sizes is needed.

Tool description

JPG to ICO Converter transforms JPG and JPEG images into ICO format files suitable for use as favicons, application icons, and other icon purposes. The tool supports preset sizes commonly used for icons as well as custom dimensions, allowing you to create ICO files optimized for your specific needs. All conversions happen directly in your browser, ensuring your images remain private and secure.

Features

  • Multiple Size Presets: Choose from standard icon sizes (16x16, 32x32, 48x48, 64x64, 128x128, 256x256 pixels)
  • Custom Dimensions: Create icons with specific width and height values between 1 and 512 pixels
  • Instant Conversion: Automatic conversion as soon as you select an image
  • Browser-Based Processing: All conversions happen locally in your browser - your images never leave your device
  • Original Filename Option: Keep the original filename when downloading, or use a default naming convention
  • Drag and Drop: Convenient drag-and-drop interface for quick file selection
  • Format Support: Works with both JPG and JPEG image formats
  • High-Quality Output: Maintains image quality during the conversion process

Use Cases

  • Website Favicons: Create favicon.ico files for websites to display in browser tabs and bookmarks
  • Windows Icons: Generate icon files for Windows applications, folders, and shortcuts
  • App Development: Prepare icon assets for desktop and web applications
  • Multi-Platform Icons: Convert photos to icon format for use across different platforms
  • Branding Assets: Transform brand logos and marks into ICO format for consistent display
  • System Customization: Create custom icons for personalizing Windows desktop appearance