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JWT Decoder - Inspect Tokens Locally

Decode JSON Web Tokens to read header, payload, and expiry claims without sending the token anywhere.

Read a JWT Without Leaking It

Debugging auth flows means staring at tokens. AiLoveKit's JWT decoder splits the three parts, pretty-prints the header and payload, and translates exp, iat, and nbf claims into readable dates with expired/valid status - all in your browser, because pasting tokens into random websites is how accounts get compromised.

What You See

Frequently Asked Questions

Does this verify the signature?

No - signature verification needs the secret or public key, which would mean uploading material you should keep. This tool decodes and inspects only.

Is decoding a JWT safe?

Decoding only reads the visible header and payload (they are base64url, not encrypted). Still, this tool does it locally, so nothing travels.

What claims are highlighted?

exp, iat, and nbf are converted to human-readable dates with live expired/valid status.