Image to Base64 Converter | Free Online Tool

About Base64 Encoding

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to embed image data directly in HTML, CSS, or JSON.

Common Use Cases

Embedding images directly in HTML or CSS files
Including images in email signatures
Storing images in databases as text
Transferring binary data over text-only protocols
Web performance optimization for small images

Performance Considerations

While Base64 is convenient, it increases the image size by about 33%. Best practices:

Use only for small images (under 2KB)
Avoid for large images as it impacts page load time
Consider HTTP/2 server push for critical images
Test performance impact before production use

Security Notes

Base64 is not encryption - it doesn't provide security or obfuscation. Anyone can decode a Base64 string back to the original image.

Drag & Drop Image Here

Select Image

No file selected

Base64 String:

Success! Base64 copied to clipboard.

Drag & Drop Image Here

Image Preview