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JWT Token Tester
Developer
Verify supported HMAC JWT signatures with a supplied secret and inspect decoded claims.
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JWT
Inspect a JWT and verify shared-secret HMAC signatures with HS256, HS384 or HS512. RSA and elliptic-curve verification are not supported.
See moreSee less about the JWT Token Tester
Review issuer, audience and claims separately.
Examples
Check a development token
Paste a three-part HS256 token and supply its matching development shared secret to compare the signature.Only HS256, HS384 and HS512 are supported. A matching signature does not establish the intended issuer or audience.
Key features
- Shared-secret HMAC signatures using HS256, HS384 or HS512. It does not verify RSA or elliptic-curve signatures.
- No. You still need to validate the intended issuer, audience and claims in your application.
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Quick answers for JWT Token Tester
Which signatures can it verify?
Shared-secret HMAC signatures using HS256, HS384 or HS512. It does not verify RSA or elliptic-curve signatures.
Does a valid signature establish trust?
No. You still need to validate the intended issuer, audience and claims in your application.