JWT Decoder

Paste a JWT to inspect header and payload claims — decoding only, no verification.

About JWT Decoder

Decode JSON Web Tokens.

Runs in your browser — your files and input stay on your device.

Related tools

Format and validate JSON data.

Test regular expressions against sample text.

Base64 Encoder Decoder

Encode and decode Base64 strings.

Generate MD5, SHA-1, SHA-256 hashes.