Free Encoding Tool
Base64 Encoder & Decoder
Encode text, files, or URLs to Base64 format, or decode Base64 strings back to their original form. Perfect for data transfer and web development.
Configuration
Choose your encoding mode and type
Text to Encode
Enter your text or upload a file to convert to Base64
Drag & drop a file here, or
Supports text files, images, documents, etc. (Max 10MB)
Quick Tips
Base64 increases data size by ~33%
URL-safe Base64 replaces +/= with -_
Great for embedding images in CSS/HTML
Not suitable for large files in browsers
Common Uses
Email Attachments
Embed files in email safely
Data URLs
Inline images in CSS/HTML
API Requests
Send binary data as text
Authentication
Basic auth headers