JWT Decoder
Decode and inspect JWT token contents (header + payload). Tokens never leave your browser.
#jwt#token#decode#header#payload#security
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How to use
- 1Paste your JWT token into the input
- 2Click "Process"
- 3View decoded header and payload
- 4Check expiry time (exp) if present
Frequently Asked Questions — JWT Decoder
Does this tool verify JWT signatures?+
No. The tool only decodes (Base64URL) the header and payload. Signature verification requires the secret key and must be done server-side.