🔐
JWT Decoder
Decode and inspect JWTs entirely in your browser — header, payload, expiry. Nothing leaves your device.
🛡️
100% local — nothing is sent anywhere.
This decoder runs entirely in your browser. Your token never leaves your device, isn't logged, stored on a server, or transmitted over the network. Decoding is not the same as verifying — we never need the secret.
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Paste a JWT above to inspect it
Header • Payload • Signature • Expiry — all decoded locally
⚠ Couldn't decode this token.
alg
typ
✓ Not expired
✕ Expired
⏳ Not active yet
No expiry claim
⚠ Unsigned (alg: none)
..
● Header
● Payload
● Signature
Header
Payload
Standard claims
Signature
No signature segment present.
The signature is base64url binary and is not human-readable. Verifying it would require the secret/public key — this tool only decodes, so the secret is never needed and never requested.
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🇮🇳 Built by Workaholic Developers
We built this little toy in days. Imagine what we’ll build for you.
AI agents, web apps, automation, custom tools — designed and engineered fast, on whatever tech fits the job. If you can describe it, we can build it.