JWT Decoder
Inspect a token’s header, payload and claims. Everything runs in your browser.
Encoded token
0 charactersPaste a three-part JWT or a Bearer token.
Token details
- Algorithm
- —
- Type
- —
- Signature
- —
- Timing
- —
Signature not verified. Decoded values and timing claims do not establish authenticity.
Decoded header
Your decoded header will appear here.Decoded payload
Your decoded payload will appear here.Registered claims
Values from the payload| Claim | Value | Meaning |
|---|---|---|
| Decode a token to inspect its claims. | ||
Paste a token or choose Sample to get started.
Your token stays in this browser
No uploads, storage or external requests.
Keyboard shortcuts
Ctrl / ⌘ + Enter Decode Ctrl / ⌘ + Shift + C Copy
Common uses
Inspect authentication claims and debug API tokens.
How it works
Paste a three-part JWT to read its Base64URL-encoded header and payload. Decoding does not verify the signature, establish authenticity or prove the token is safe to trust.
Related tools
Frequently asked questions
Does this verify the signature?
No. This tool only decodes the header and payload. Verify signatures in your application with the correct key and expected algorithm.
Can I decode an encrypted token?
No. This decoder supports three-part signed JWTs with JSON header and payload, not five-part encrypted tokens.