DevToolbox

Base64 Encoder/Decoder

Encode and decode Base64 text and files

Encode to Base64
Convert plain text to Base64
Decode from Base64
Convert Base64 back to plain text
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format using 64 printable characters.
Common Uses:
  • Email attachments (MIME)
  • Data URLs in web development
  • API data transmission
  • Configuration files
  • Embedding images in CSS/HTML
Characteristics:
  • Uses A-Z, a-z, 0-9, +, / characters
  • Padding with = characters
  • ~33% size increase from original
  • Safe for text-based protocols
  • Reversible encoding