JWT Decoding and Verification - EBTool-Simple & Useful

JWT

Header（Base64URL）

Header（JSON）

Payload（Base64URL）

Payload（JSON）

Signature（Base64URL）

Signature（hex）

type

Secret/Public Key (Secret text or Base64 for HS; PEM public key or JWK JSON for RS/ES)）

Note: RS/ES verification expects the public key to be PEM or JWK. Signature validity cannot be guaranteed without the appropriate key.

Output Result

Claims Verify

📖 Description

Used to decode and verify JSON Web Tokens.

Paste a complete JWT string in the "Input JWT" box.

The tool will automatically parse and display the header, payload, and signature contents.

Verifying the signature requires the correct private/public key; if you only want to view the header/payload, click "Decode."