Free online encoders and decoders
Encode and decode Base64, URLs, HTML entities, hex and backslash escapes, and decode JSON Web Tokens, with full UTF-8 support. All 11 tools are free, need no sign-up and run entirely in your browser.
Base64 Encoder
Encode text to Base64
Base64 Decoder
Decode Base64 back to text
URL Encoder
Percent-encode text for URLs
URL Decoder
Decode percent-encoded URLs
HTML Entity Encoder
Escape text into HTML entities
HTML Entity Decoder
Unescape HTML entities to text
Text to Hex
Convert ASCII/UTF-8 text to hex
Hex to Text
Convert hex bytes to ASCII/UTF-8 text
Backslash Escape
Escape quotes, newlines and tabs
Backslash Unescape
Turn \n, \t and \" back into text
JWT Decoder
Decode JSON Web Token header and payload
