Paste-first
Crypto
ready
JWT Inspector
Decode JWTs, inspect claims, and verify HS signatures locally.
Algorithm
JWS / HS / RS
Data
Token stays in this browser
Output
Claims and signature state
Sensitive
What JWT Inspector does
local-first
JWT Inspector decodes JSON Web Tokens, displays header and payload claims, checks time claims, and verifies supported signatures locally so tokens can be inspected without sending secrets to a server.