JWT Decoder

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Decode and inspect JWT tokens — header, payload, and expiry status

JSON Web Token

Paste a JWT above to decode its header and payload.
All decoding happens locally — your token never leaves your browser.

About this tool

Decode and inspect JWT tokens — header, payload, and expiry status This tool runs entirely in your browser — your data never leaves your device.

Privacy

All processing happens client-side. We don't store or transmit your data to any server. Your files and inputs remain completely private.