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Developer Tools2024-12-21•5 min
JWT Decoder: Decode JSON Web Tokens
Decode and inspect JWTs without validation. View header, payload, and signature claims.
What is a JWT?
JSON Web Tokens have three parts:
1. Header - Algorithm and type 2. Payload - User data and claims 3. Signature - Verification hash
JWT Structure
eyJhbGc... (header)
.eyJzdWI... (payload)
.SflKxw... (signature)
How to Decode
Our JWT Decoder:
1. Paste the full JWT 2. See decoded header and payload 3. Verify expiration and claims
Security Note
Never paste JWTs from production into online tools. For inspection only!
Related Tools
- Base64 Decoder - Decode segments - Hash Generator - Verify signatures
Decode with JWT Decoder!