Base64 Encoder & Decoder

Encode and decode text to/from Base64 format with ease

Text Input

Press Ctrl+Enter to encode
0 characters

Base64 Output

About Base64 Encoding

🔤

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used for encoding data in email, web APIs, and data transmission where binary data needs to be stored or transmitted over media designed for text.

🔧

Common Use Cases

  • Encoding images for data URLs in CSS/HTML
  • API authentication tokens and credentials
  • Email attachment encoding (MIME)
  • Storing binary data in JSON or XML
  • URL-safe data transmission
  • Configuration file data encoding

Features

  • ✓ Instant encoding and decoding
  • ✓ Full UTF-8 character support
  • ✓ Error validation and feedback
  • ✓ One-click copy to clipboard
  • ✓ Swap between encode/decode modes
  • ✓ Keyboard shortcuts (Ctrl+Enter)
🔒

Privacy & Security

All encoding and decoding operations happen entirely in your browser. No data is sent to any server, ensuring complete privacy and security for your sensitive information.

🛡️100% Client-Side Processing