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Base64 Encoder/Decoder
Encode and decode Base64 strings
base64encodedecode
Convert plain text to Base64 encoded string
Characters: 0
Base64 String
Base64 encoded result
About Base64 Encoding
Learn about Base64 encoding and its use cases

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used in web development, email attachments, and data transmission.

Use cases:

  • Encoding binary data for transmission over text-based protocols
  • Embedding images or files in HTML/CSS (data URIs)
  • Storing binary data in JSON or XML
  • Email attachments (MIME encoding)

Note: Base64 encoding increases the size of data by approximately 33%.