Standard Base64 versus Base64URL
Base64 represents bytes using ASCII characters. The URL-safe variant swaps + and / for - and _, and often drops trailing padding. JWTs use this representation.
SIXHACK / ENCODING
Base64 Toolkit
Base64 encoder and decoder
Convert text between UTF-8, Base64, and Base64URL without installing anything.
</>Base64 · Base64URL · Encoding
INPUT / 01
Input
OUTPUT / 02
Results
Results will appear here after processing the input.
HOW IT WORKS / GUIDE
Interpreting the results
Unicode support
Input and output are interpreted as UTF-8 text. When bytes contain arbitrary binary data, this utility raises an error rather than inventing text characters.
Not encryption
Base64 is reversible without a secret key. Never use it to protect passwords, secrets or personal information.
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