utilstore.tech

JWT Encoder

Create JSON Web Tokens with custom claims

Keep your secret key safe. Never expose it in client-side code.

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JWT Structure

Header - Algorithm & token type
Payload - Claims & data
Signature - Verification

Common Claims

iss - Issuer
sub - Subject
aud - Audience
exp - Expiration
nbf - Not Before
iat - Issued At
jti - JWT ID

What is a JWT Encoder?

A JWT encoder creates signed JSON Web Tokens from a header, payload, and secret key. Supports HS256, HS384, and HS512 algorithms. Useful for generating test tokens during API development without a backend server.

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