Tokens are decoded entirely in your browser. Never share JWTs containing sensitive data.
Decode JSON Web Tokens to inspect header, payload, and signature. Verify signatures with Web Crypto API.
Tokens are decoded entirely in your browser. Never share JWTs containing sensitive data.
Paste your JWT
Enter the JWT token you want to inspect.
View decoded payload
The header and payload are decoded and displayed as formatted JSON.
Check expiration
See token claims including expiration time and issuer details.
Paste messy JSON — get it beautifully formatted, validated, and unescaped. Runs entirely in your browser.
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