Image Base64 Converter Tool
Convert images to Base64 encoding and vice versa. Embed images directly in HTML, CSS, or JSON without external file dependencies.
Bidirectional Conversion
Convert images to Base64 strings or decode Base64 data back to downloadable images with full format support.
Data URI Support
Generate complete data URIs with proper MIME types for direct use in HTML, CSS, and web applications.
Multiple Formats
Support for PNG, JPEG, GIF, SVG, and other image formats with automatic format detection and conversion.
Common Use Cases
- HTML Email Templates
Embed images directly in email HTML to avoid external dependencies
- CSS Background Images
Use Base64 images as CSS backgrounds to reduce HTTP requests
- API Data Transfer
Send images as part of JSON payloads in REST APIs
- Offline Applications
Bundle images within applications for offline functionality
Data URI Examples
📷 Base64 Image Best Practices
• Consider file size impact
Base64 increases size by ~33%, use for small images
• Optimize before encoding
Compress images first to minimize Base64 output
• Use appropriate formats
PNG for transparency, JPEG for photos, SVG for icons
• Cache considerations
Base64 images can't be cached separately from HTML/CSS