Step-by-Step Instructions
- Upload Image: Click the upload area or drag and drop an image file
- View Results: The tool automatically converts your image to Base64 format
- Copy Base64: Use the "Copy" button to copy the Base64 string
- Copy HTML: Use the "Copy" button to copy the HTML img tag with Base64 data
- Clear: Use the "Clear" button to reset and upload a new image
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to embed images directly into HTML, CSS, or JavaScript files.
Supported Image Formats
- JPEG (.jpg, .jpeg)
- PNG (.png)
- GIF (.gif)
- BMP (.bmp)
- WebP (.webp)
- SVG (.svg)
Common Use Cases
Web Development:
- Embedding images in HTML emails
- Creating data URIs for CSS backgrounds
- Storing images in JSON or XML files
- Reducing HTTP requests by inlining small images
Mobile Development:
- Storing images in local databases
- Creating offline-capable web apps
- Generating QR codes with embedded images
Base64 Format Examples
Base64 String:
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAAAABJRU5ErkJggg==
HTML Implementation:
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAAAABJRU5ErkJggg==" alt="Base64 Image">
Advantages of Base64 Images
- No additional HTTP requests needed
- Works offline once loaded
- Can be embedded in any text-based format
- Reduces server load for small images
Disadvantages of Base64 Images
- Increases file size by about 33%
- Not cached separately by browsers
- Can make HTML/CSS files very large
- Not suitable for large images
Tips for Best Results
- Use Base64 for small images (under 10KB)
- Optimize images before converting
- Consider using WebP format for better compression
- Test your Base64 images in different browsers
Important Notes
- All processing is done locally in your browser
- No images are uploaded to external servers
- Base64 strings can be very long for large images
- Some email clients may not support Base64 images
- Consider file size limits when using in web applications