Is the JWT decoder free?

Yes. WebStatus.in offers this tool at no charge with no account required.

Does decoding prove the token is valid?

No. Anyone can forge an unsigned-looking payload. Always verify signatures and issuer/audience on the server.

Does my data leave my browser?

The main JWT decode workflow runs locally in your browser. If this tool also performs live network requests, those use our infrastructure as described on the full tool page.

How accurate are the results?

Results reflect the algorithms and public data sources available at request time. For legal, compliance, or production decisions, verify with your own tooling and authoritative sources.

JWT Decoder Online — Inspect JSON Web Tokens

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What does decoding a JWT mean?

JWTs are three Base64url-encoded parts. Decoding reveals JSON header and payload for debugging. Verifying a signature requires keys and algorithms your authorization server provides.

How to use this tool

Paste the token string. Review header and claims JSON. Redact tokens before sharing screenshots. Use the full tool for validation helpers if available.

Use cases

Debugging OIDC login flows, inspecting exp/iat skew, tracing gateway routing claims, teaching token structure.

Privacy and security

Editor and conversion workflows run in your browser without uploading your content to our servers for those steps. Clear sensitive data when you finish, especially on shared machines.

Frequently asked questions

Encoded Token

Verify Signature

Enter the secret to verify the HMAC signature

Header

ALGORITHM & TOKEN TYPE

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Payload

DATA

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Signature

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