Encoders & Decoders

Encode, decode, and hash text without leaving your browser. Inspect JWTs, convert Base64 and URL-encoded strings, generate cryptographic hashes, and escape HTML entities. Nothing is sent to a server.

JWT Decoder

Decode JSON Web Tokens and inspect header, payload and signature.

Base64 Encode / Decode

Encode text to Base64 or decode Base64 strings back to plain text.

URL Encode / Decode

Percent-encode or decode URLs and query-string parameters safely.

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text.

MD5 Hash Generator

Generate MD5 hashes from text for checksums and legacy systems.

SHA-1 Hash Generator

Generate SHA-1 hashes from text for Git object IDs and compatibility.

SHA-256 Hash Generator

Generate SHA-256 hashes for TLS, blockchain, and integrity checks.

SHA-512 Hash Generator

Generate SHA-512 hashes for password storage and high-security use.

HTML Entity Encode / Decode

Encode special characters as HTML entities or decode them back.