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JWT Decoder Online

Decode a JSON Web Token header and payload, inspect claims and check expiration without uploading a key.

How it works

Paste your input, select an operation and process it. Delimiter.live does not intentionally retain submitted tool data.

Frequently asked questions

Is this tool free?

Yes. It is free and requires no account.

Is my input stored?

No. Input is used to produce the response and is not intentionally persisted.

Security note: Decoding does not verify the JWT signature. Never treat decoded claims as trusted until the signature and expected algorithm are verified by your application.