JWT Decoder & Encoder
Decode and inspect a JSON Web Token, get plain-English feedback on every claim, verify the signature (HMAC, RSA, ECDSA or RSA-PSS — with a secret, PEM key, JWK or JWKS), and sign brand-new tokens. Everything runs in your browser — your token, secrets and keys are never uploaded.
New to this? Read the JWT guide →
● Header ● Payload ● Signature
Verify signature
Decode a token to verify it.
Header
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Payload
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Signature
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Paste a JWT to decode it.