SECSecurity
JWT Inspector & Decoder
Decode and inspect JWT and NextAuth / Auth.js headers, payloads, claims, expiration dates, and JWE cookies.
tool id:jwt-inspector
jwt / nextauth inspectorInspect standard signed JWTs & NextAuth / Auth.js tokens
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c3Jfc3JpcmFtXzkwMjEwIiwibmFtZSI6IlNyaXJhbSBHYW5kcm90aHUiLCJlbWFpbCI6InNyaXJhbUBzd2lmdHByb2plY3QuaW4iLCJyb2xlIjoiTGVhZCBBcmNoaXRlY3QiLCJhcGlLZXkiOiJzd2lmdF9za19saXZlX3NyaXJhbV90b2tlbiIsImlhdCI6MTcxMDAwMDAwMCwiZXhwIjoxODkwMDAwMDAwfQ.sample_signature_sriram_hash_verification
Header (Algorithm & Typ)
// Header will appear here
Payload (Claims & Data)
// Decoded claims will appear here
Cryptographic Signature
// Signature hash
Decodes standard JWTs and NextAuth / Auth.js session cookies100% Client-Side In-Memory Decoding
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