Encode & Decode
Base64, URL, JWT, HTML entities and hex transformations.
Base64 Encode / Decode
Encode text to Base64 and decode it back, with full UTF-8 support.
URL Encode / Decode
Percent-encode and decode URL components and query strings.
JWT Decoder
Decode JSON Web Token header and payload and inspect claims (no verification).
HTML Entity Encode / Decode
Escape and unescape HTML special characters like < > & " '.
Hex ↔ Text Converter
Convert text to hexadecimal bytes and back (UTF-8).
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal.