Encoder tools
Encode, decode, hash and inspect data such as Base64, URLs, JWTs and HTML entities.
Base64 Encode and Decode
Encode text to Base64 or decode Base64 back to text.
Hash Generator (SHA-1, SHA-256, SHA-512)
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text.
HTML Entities Encode and Decode
Escape or unescape HTML special characters and entities.
JSON String Escape and Unescape
Escape text for use inside a JSON string, or unescape it.
JWT Decoder
Decode a JSON Web Token and read its header and payload.
Text to Binary, Hex and Decimal
Convert text to binary, hex, decimal or octal and back.
URL Encode and Decode
Percent-encode or decode URLs and query string values.
Every Encoder tool here is free, needs no sign-up and runs in your browser unless noted on the tool page.