JWT Decoder

About JWT Decoder

JWT Decorder is an online tool that allows you to decode, analyze, and validate JSON Web Tokens (JWT). It provides detailed information about the token's header, payload, and signature, helping you understand its structure and contents.

Features of JWT Decoder

Our JWT Decorder comes with many amazing features:

• Decode JWT tokens to view header, payload, and signature
• Validate JWT format and check for common errors
• Display token claims with human-readable formatting
• Analyze token validity, expiration, and not-before times
• Copy decoded sections to clipboard for easy sharing
• Reference guide for JWT claims and algorithms
• Sample JWT tokens for testing and learning

Common JWT Claims and Algorithms

Standard Claims

• iss: Issuer - who issued the token
• sub: Subject - who the token is about
• aud: Audience - who the token is for
• exp: Expiration time
• iat: Issued at time
• nbf: Not before time
• jti: JWT ID - unique identifier

Common Algorithms

• HS256: HMAC SHA-256 (symmetric)
• HS384: HMAC SHA-384 (symmetric)
• HS512: HMAC SHA-512 (symmetric)
• RS256: RSA SHA-256 (asymmetric)
• RS384: RSA SHA-384 (asymmetric)
• RS512: RSA SHA-512 (asymmetric)
• ES256: ECDSA SHA-256 (asymmetric)

Security Notes

• Always verify signatures in production
• Use strong secrets for HMAC algorithms
• Set appropriate expiration times
• Validate all claims before use
• Use HTTPS for token transmission
• Store tokens securely on client side

Faqs about JWT Decoder

Q: Do I need to install app to use JWT Decorder?

A: No, You don't need to install any app or extension. Just open this tool and paste your JWT token to decode it.

Q: Is it safe to use this JWT Decorder?

A: Yes, This tool is fully safe, we are not storing any data from JWT Decorder.

Q: Is there any desktop app available for JWT Decorder?

A: Yes, This entire tool is Progressive web app, from any latest browser you can easily install this app.

Q: Is this tool works offline?

A: Yes, If you install our progressive web app.