JWT Token Generator

JWT Token Configuration

JWT Payload (JSON)

Standard Claims: sub, iss, aud, exp, nbf, iat, jti

Token Expiry

Issuer (iss)

Audience (aud)

Subject (sub)

Signing Algorithm

Choose the algorithm for signing the token

Secret Type

Secret Key

Note: For HMAC algorithms, use a strong secret key. For RSA, paste your private key.

Token Type

Output Format

Custom Claims (JSON)

Add any custom claims to include in the token payload

Include Issued At (iat)

Include JWT ID (jti)

Token Payload

No payload configured

JWT Token

Token will appear here after generation

Header

No header generated

Payload

No payload generated

Signature

No signature generated

JSON Web Tokens (JWT): An open standard for securely transmitting information between parties as a JSON object.
Structure: JWTs consist of three parts: Header, Payload, and Signature, separated by dots.
Header: Contains token type and signing algorithm information.
Payload: Contains the claims (statements about an entity) and additional data.
Signature: Verifies that the sender is who they say they are and ensures the message wasn't changed.
Common Use Cases: Authentication, authorization, information exchange in web applications and APIs.
Security: Always use strong secrets for HMAC algorithms and protect private keys for RSA algorithms.
Standard Claims: Registered claim names include iss (issuer), exp (expiration time), sub (subject), aud (audience), and others.
JWTs can be signed using a secret (with HMAC algorithm) or a public/private key pair (with RSA or ECDSA).
Tokens should have reasonable expiration times to minimize security risks.
Never store sensitive information in JWT payloads as they can be easily decoded.
Always validate tokens on the server side before trusting the contained information.
Consider using short-lived access tokens with longer-lived refresh tokens for better security.