The Favicon Generator is a free, privacy-focused online tool that creates a complete set of favicon files for your website entirely in your web browser. Unlike traditional favicon generation services that require uploading your images to remote servers, this tool performs all operations client-side using JavaScript and browser APIs, ensuring your images never leave your device.
This favicon converter excels at handling both raster images (PNG, JPEG, WebP) and vector graphics (SVG), making it ideal for converting logos and brand marks into website favicons. When you upload an SVG favicon source, the generator renders it at ultra-high resolution (4096×4096 pixels) before intelligently downscaling to create each required favicon size, ensuring crisp, sharp icons even at the smallest dimensions. This SVG-to-favicon conversion process preserves the quality of your vector artwork far better than starting with raster images.
What is a Favicon?
A favicon (short for "favourite icon") is a small icon associated with a website, displayed in browser tabs, bookmarks, and browser history. Modern websites require multiple favicon sizes and formats to support different devices, browsers, and contexts. A well-designed favicon strengthens brand recognition and improves user experience by making your site instantly identifiable among dozens of browser tabs.
Key Features
- SVG Support: Upload SVG logos for the highest quality favicons - perfect for converting vector graphics to favicon format
- Complete Favicon Package: Generate all necessary favicon sizes in one click
- Multiple Input Formats: Accepts JPEG, PNG, WebP, BMP, TIFF, GIF, and SVG files
- PNG and ICO Output: Creates both PNG and ICO formats for broad browser compatibility
- Intelligent Image Processing: SVG files are padded to square with full preservation; raster images are center-cropped
- Web Manifest: Includes site.webmanifest file for Progressive Web Apps (PWA)
- 100% Privacy: All processing happens in your browser - your images never touch our servers
- No File Size Limits: Process images of any size your browser can handle
- Ready-to-Use Package: Download a ZIP file with all files and HTML code snippets
Generated Files
The favicon generator creates the following files in a single ZIP package:
- favicon.ico (32×32) - Traditional ICO format for legacy browser support
- favicon-16x16.png - Small size for browser tabs
- favicon-32x32.png - Standard size for browser tabs
- apple-touch-icon.png (180×180) - iOS home screen icon
- android-chrome-192x192.png - Android home screen icon
- android-chrome-512x512.png - High-resolution Android icon
- site.webmanifest - Web app manifest for Progressive Web Apps
How to Use This Favicon Converter
- Upload Image: Drag and drop your logo or image file, or click to select from your device. For best results, use an SVG file of your logo.
- Automatic Processing: The tool automatically generates all favicon sizes. SVG files are rendered at 4096×4096 resolution with the entire graphic preserved using transparent padding, while raster images are center-cropped to square format.
- Download Package: Click "Download Favicon Package" to get a ZIP file containing all favicon files and the web manifest.
- Install on Your Website: Extract the ZIP to your website root directory and add the provided HTML code to your page <head> section.
How SVG to Favicon Conversion Works
When you upload an SVG file, this favicon generator uses a specialized process to ensure maximum quality:
- High-Resolution Rendering: Your SVG is rendered to a 4096×4096 pixel canvas, preserving vector sharpness
- Aspect Ratio Preservation: The SVG is scaled to fit within the square canvas while maintaining its original proportions
- Transparent Padding: Rather than cropping your artwork, transparent padding is added around the image to create a perfect square
- Multi-Step Downscaling: The high-resolution square is progressively scaled down to each required favicon size using high-quality interpolation
- Format Conversion: Final images are saved as PNG files (and one ICO file for legacy browser support)
This SVG favicon generation approach ensures your vector logo remains crisp and clear at all sizes, from the tiny 16×16 pixel browser tab icon to the large 512×512 pixel Android home screen icon. For raster images (JPEG, PNG, etc.), the tool performs center-cropping to create a square format before applying the same high-quality downscaling process.
Supported Input Formats
Input formats: JPEG/JPG, PNG, WebP, BMP, TIFF, GIF, and SVG (recommended for logos)
The tool accepts any common image format and handles them intelligently:
- SVG files: Rendered at ultra-high resolution (4096×4096) and padded to square while preserving the entire vector graphic. No cropping occurs - the image is centered with transparent padding added as needed.
- Raster images (PNG, JPEG, etc.): Cropped to square from the center if non-square:
- Portrait images: Top and bottom portions are clipped from the center
- Landscape images: Left and right portions are clipped from the center
- Square images: No cropping needed - used as-is
Tips for Best Favicon Results
- Use SVG for Logos: SVG input produces the highest quality favicons at all sizes - ideal for converting your logo to favicon format
- High Resolution Raster Images: For PNG/JPEG images, use at least 512×512 pixels for optimal quality across all favicon sizes
- Simple, Bold Designs: Favicons are displayed at very small sizes (16×16 to 512×512 pixels), so simple designs with clear shapes and strong contrast work best
- Contrast Matters: Ensure good contrast between foreground and background for visibility, especially at 16×16 and 32×32 pixel sizes
- Transparent Backgrounds: PNG and SVG files with transparency are fully supported and recommended for flexibility across different browser themes
- Center Your Subject: For raster images, center your main subject to prevent important elements being cropped during square conversion
- Test Across Devices: After installation, test your favicons in different browsers (Chrome, Firefox, Safari, Edge) and devices (desktop, mobile, tablet)
- Consider Dark Mode: Ensure your favicon is visible in both light and dark browser themes
Privacy & Security
This favicon generator operates entirely within your web browser using client-side JavaScript. No images are uploaded to our servers or any third-party service. This means:
- Complete privacy - your images remain on your device
- No file size limits - process images of any size your browser can handle
Technical Details
The favicon generator uses modern browser APIs to perform all operations client-side. Image cropping and resizing are performed using the HTML5 Canvas API. The ICO file is generated as a PNG image (modern browsers accept PNG data in .ico files). The ZIP file is created using JSZip, a JavaScript library bundled with the component for creating ZIP files in the browser.
All modern browsers are supported, including Chrome, Firefox, Safari, and Edge. The tool requires JavaScript to be enabled and uses features available in all browsers released since 2020.
Common Use Cases
- New Websites: Create a complete favicon set when launching a new website
- Rebranding: Update all favicon files when changing your brand identity
- Progressive Web Apps: Generate favicons and manifest for PWA requirements
- Client Projects: Quickly create professional favicon packages for client websites
- Logo Conversion: Convert SVG or high-resolution logos to favicon formats
Browser Compatibility
The generated favicons are compatible with all modern browsers and many legacy browsers:
- Desktop: Chrome, Firefox, Safari, Edge, Opera
- Mobile: Safari (iOS), Chrome (Android), Samsung Internet
- Legacy: Internet Explorer 11+ (via favicon.ico)
About Web App Manifests
The included site.webmanifest file is a JSON file that provides information about your web application
when it's installed on a user's device. While this tool generates a basic manifest with favicon references, you can
customise it further by adding properties like:
- name and short_name - Your application's name
- description - Description of your application
- theme_color and background_color - Colour customisation
- display - Display mode (standalone, fullscreen, minimal-ui, browser)
- start_url - URL to load when launching the app
Learn more about web app manifests at the MDN Web Docs.