Developer Tools

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 strings instantly. Perfect for working with APIs, authentication tokens, and data 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 that needs to be stored and transferred over media designed to handle text.

Common Uses

  • • Email attachments (MIME)
  • • Data URLs in HTML/CSS
  • • API authentication tokens
  • • Storing binary in JSON

Characteristics

  • • Output is ~33% larger than input
  • • Uses A-Z, a-z, 0-9, +, /
  • • Padding uses = character
  • • Safe for text transmission

Security Note

  • • Not encryption!
  • • Easily reversible
  • • Don't use for secrets
  • • Just encoding, not security