JWT Decoder
Decode JWT tokens to see the header, payload and expiry status. Colour-coded sections with formatted JSON output. Paste any JWT to inspect its contents.
What is JWT?
JSON Web Token (JWT) is a compact token format with three parts separated by dots:
- 1. Header: Token type and hashing algorithm
- 2. Payload: Data claims (user info, permissions, etc.)
- 3. Signature: Cryptographic hash for verification
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