Encode / Decode
Base64, URL, HTML entities, JWT and more.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to plain text, entirely in your browser, with full UTF-8 support.
URL Encoder / Decoder
URL-encode text into percent-encoded format for safe use in a query string, or decode it back to plain text.
HTML Entities Encoder / Decoder
Convert reserved HTML characters like < > & to entities, or decode named, numeric, and hex entities back to text.
JWT Encoder / Decoder
Decode, verify, and generate JSON Web Tokens (JWTs) entirely in your browser, with no server round-trip.
XML Escape / Unescape
This XML escaper converts reserved characters to entities so text can sit safely inside markup.
JavaScript Escape / Unescape
This JavaScript escaper prepares any text to sit inside a string literal without breaking it.
Java Escape / Unescape
This Java escaper handles the sequences Java accepts, including ASCII-only output for properties files.
C# / .NET Escape / Unescape
This C# escaper prepares text for a regular string literal, with a note on verbatim strings.
CSV Escape / Unescape
This CSV escaper quotes a field only when it needs it, and doubles any quotes inside.
SQL Escape / Unescape
This SQL escaper doubles single quotes, with an option for MySQL backslash escapes.
Base32 Encoder / Decoder
This Base32 encoder converts text to and from the case-insensitive RFC 4648 alphabet.
ROT13 Encoder / Decoder
This ROT13 tool shifts letters 13 places, and running it twice gives you back the original.
Morse Code Translator
This Morse translator converts text to code and back, with a full reference table.
Punycode Converter
This Punycode converter turns internationalised domains into their xn-- form and back.
Text to Binary Converter
This text to binary converter shows the UTF-8 bits behind any text, in both directions.
Text to Hex Converter
This text to hex converter shows UTF-8 bytes in hexadecimal, and converts them back.
UTF-8 Converter & Inspector
This UTF-8 inspector breaks text down character by character, with code points and bytes.
GZip & zLib Compress / Decompress
This tool compresses and decompresses GZip and zLib data using the browser built-in support.
About Encode / Decode
Encoders and decoders for the formats that appear in URLs, HTML, HTTP headers and authentication tokens. Convert text to and from Base64, safely percent-escape values for query strings, escape HTML entities so untrusted text renders without breaking your markup, and decode, verify or generate JSON Web Tokens.
Everything on this page runs directly in your browser — none of your input is uploaded to a server.