JWT Decoder
Inspect JSON Web Tokens (JWT) headers, payloads, claims, and human-readable expiration dates in real time.
// Waiting for valid token header
// Waiting for valid token payload
About JWT Decoder
Debugging OAuth2, OpenID Connect, and API authentication flows requires quick inspection of JWT claims like 'exp', 'iat', 'sub', and custom roles. OpsKitTools JWT Decoder parses JWT strings locally in your browser, highlighting whether the token is currently expired or active, and formatting epoch timestamps into human dates.
How to Use This Tool
- Paste your Bearer token or raw JWT string (e.g. 'eyJhbGci...').
- The tool splits the token into Header (algorithm), Payload (claims), and Signature.
- Review the token expiration status card (Active vs. Expired) with exact UTC & local expiry times.
- Copy individual JSON sections as needed.
Practical Examples & Use Cases
Inspect Claims & Expiration
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkFsaWNlIERldk9wcyIsImFkbWluIjp0cnVlLCJleHAiOjE5ODcyMDAwMDB9.signature
Instantly inspects who the subject ('sub') is, custom roles ('admin: true'), and whether the token has expired.
Frequently Asked Questions
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