JWT Decoder
Inspect a JSON Web Token header and payload in your browser without sending the token. Decoding shows claims; it does not verify a signature or authorization.
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Add your input, adjust the options and run the tool.
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How to use this tool
01
Add your input
Paste text or choose a file. Try the example to get started.
02
Choose your options
Inspect header, payload and timestamps. Decoding alone does not verify a signature.
03
Inspect and export
Review the processing notes, then copy or download the result. Continue with another tool if needed.