Encoding/Decoding
Base64, URL, JWT encoding and decoding tools
9 tools
Base64 Encoder & Decoder Free online Base64 encoder and decoder for text and files, converting any input into a Base64 string or restoring the original data, with full UTF-8 support and URL-safe encoding options.
URL Encoder/Decoder Free online tool to encode and decode URL strings with percent encoding (%XX) and parse URL query parameters. Built on encodeURIComponent, it safely converts spaces and non-ASCII characters to UTF-8 bytes.
HTML Entity Encoder/Decoder Free online tool to encode HTML special characters like <, >, & into safe entities or decode entities back to text, supporting named, decimal, and hex formats for XSS-safe markup
JWT Decoder Free online tool to decode JWT tokens and inspect the Header, Payload, and Signature, reading claims, algorithm, and expiration (exp) safely in your browser.
Unicode Converter Free online tool to convert between characters and Unicode code points (U+) while showing UTF-8 and UTF-16 bytes. It decomposes emojis into individual code points and reveals details like surrogate pairs.
Hex String Converter Free online hex string converter to encode text into hexadecimal and decode hex back to text. Switch between five formats including spaced bytes, 0x prefix and \x escapes, instantly.
Punycode Converter Free online Punycode converter that translates internationalized domain names with Unicode characters to ASCII-compatible xn-- Punycode and decodes them back, supporting IDN encoding for browsers, email and DNS.
ROT13 Encoder Free online ROT13 encoder and decoder that applies the classic Caesar cipher by shifting each letter 13 places in the alphabet; the same operation encodes and decodes text instantly, entirely in your browser.
Morse Code Translator Free online tool to translate between text and Morse code in both directions, with audio playback of the dots and dashes for listening practice and signaling.