Image to Base64 Converter
Convert images to Base64-encoded data URLs for embedding directly in HTML, CSS, or JSON without external files.
Upload Image
Privacy: All conversion happens in your browser. No images are uploaded to any server.
Decode Base64 to Image
Format Examples
Data URL:
data:image/png;base64,iVBORw0KGgoAAAANSUhEU...
HTML:
<img src="data:image/png;base64,iVBORw0K..." alt="Image">
CSS:
.element {
background-image: url('data:image/png;base64,iVBORw0K...');
}About Base64 Image Encoding
Base64 encoding converts binary image data into ASCII text format, allowing images to be embedded directly in HTML, CSS, or JSON without separate HTTP requests.
Benefits:
- No HTTP Requests: Reduces server requests, faster initial load
- Portable: Single file contains all resources
- Email Safe: Works in HTML emails
- Inline SVG Alternative: For complex graphics
Considerations:
- File Size: Base64 is ~33% larger than original binary
- Caching: Can't be cached separately from HTML/CSS
- Best For: Small images (icons, logos) under 10KB
- Not Recommended: Large photos or frequently updated images
Common Use Cases
- Icons & Logos: Small graphics embedded in CSS
- Email Templates: Images in HTML emails
- Single-File Apps: Standalone HTML with embedded images
- API Responses: Including images in JSON data
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