Image to Base64 Converter
Convert images to Base64 data URLs for embedding directly in HTML and CSS without external file requests. Perfect for small icons, logos, and images.
No image selected. Click "Choose Image" to upload.
File Size:
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Dimensions:
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0 KB
Output Size
Use Cases
Embed Images
Include small images directly in HTML without external files
CSS Backgrounds
Use Base64 images as CSS background properties
Reduce Requests
Minimize HTTP requests by embedding images directly
Email Images
Include images in emails using data URLs
How to Use
- Click "Choose Image" to select an image file from your device
- The image preview will display and Base64 encoding will begin automatically
- Choose your preferred output format (Data URL, Base64 Only, HTML img tag, or CSS background)
- Click "Copy" to copy the result to your clipboard
- Paste the result directly into your HTML, CSS, or JavaScript code
How It Works
- Base64 Encoding: Binary image data is converted to ASCII text representation using Base64 algorithm
- Data URL Format: Includes MIME type and Base64 prefix for direct HTML/CSS use
- Supported Formats: JPEG, PNG, GIF, WebP, SVG - all converted to appropriate Base64 format
- Size Increase: Base64 encoded images are approximately 33% larger than the original binary file
- Best Practice: Use for small icons and images (typically under 10 KB) to avoid bloating HTML/CSS files
- Browser Caching: Data URLs bypass browser image caching, so best for small static assets
- Local Processing: All conversion happens in your browser - no data is uploaded to any server