Mode:
Input (Plain)
Characters:0
Lines:1
Options
0 (no breaks)76 (RFC 2045)256
Output (Base64)
Characters:0
Size ratio:N/A
About Base64 Encoding
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format.
Common Use Cases:
- • Embedding images in HTML/CSS (Data URIs)
- • Transmitting binary data over text-based protocols
- • Storing complex data in JSON or XML
- • Email attachments (MIME encoding)
- • API authentication tokens
Encoding Details:
- • Uses 64 characters: A-Z, a-z, 0-9, +, /
- • Padding with = for alignment
- • Increases data size by ~33%
- • URL-safe variant replaces +/ with -_