JWT Decoder
Decode a JWT and inspect header, payload and expiry status.
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Decode a JWT and inspect header, payload and expiry status. Your text is processed locally in your browser and is never uploaded to a server.
How this tool works
Paste a JWT to decode the header, payload and signature without verifying it. The expiry status (valid, expired, not yet valid) is shown next to standard claims (exp, iat, nbf). Your text is processed locally in your browser and is never uploaded to a server. You can paste text or load supported text and document files, including TXT, Markdown, CSV, HTML, PDF, and DOCX.
Frequently Asked Questions (FAQ)
Decode a JWT and inspect header, payload and expiry status.
No. Your text is processed locally in your browser and is never uploaded to a server.
Yes. You can paste text or load supported text and document files, including TXT, Markdown, CSV, HTML, PDF, and DOCX.