Authentication & Security
JWT Decoder & Claims Inspector
Paste a JWT, inspect its header and payload, and review its claims privately in your browser.
MicroIntent Quick Tool
Local JWT decoding with evidence you can understand
Your token stays in this browser tab. This tool makes no token lookup, key request, network request, storage write, or signature-verification claim.
0 characters
Paste a compact three-part token. Leading whitespace and a Bearer prefix are recognized and reported.
Supported: standard three-part JWT/JWS. Not supported: encrypted JWE, nested JWT interpretation, detached payloads, key fetching, JWKS lookup, or signature verification.
Demonstration token — decoded content is not trusted and the signature is not verified.
Copy and download are disabled until a valid JWT has been decoded locally.