Base64 Encoder/Decoder
Convert text and files to and from Base64 encoding
Current Mode: Encode to Base64
Convert plain text or files to Base64 encoded string
Input
Enter text or upload a file to encode
Length: 0 characters
About Base64
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data in printable ASCII characters.
- • Uses 64 printable characters (A-Z, a-z, 0-9, +, /)
- • Padding character = for alignment
- • Increases data size by ~33%
- • Safe for text-based protocols
Common Uses
- • Email attachments (MIME)
- • Data URLs in web pages
- • API data transmission
- • Storing binary data in text formats
- • JWT tokens
- • Basic authentication headers
Privacy Notice
All encoding and decoding happens locally in your browser. Your data is never sent to any server.