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JWT Generator — Create & Sign JWT Tokens

Generate and sign JSON Web Tokens online. Build a custom header and payload, sign with your HS256 secret, and copy a ready-to-use JWT for testing APIs and authentication flows — all generated in your browser so secrets stay private.

JWT Generator – Create JWT Tokens Online

New to JWTs? Read our step-by-step guide: How to Generate JWT Tokens
Read the guide

Create JWTs with a custom payload

Add the claims your application expects — sub, iss, exp, roles or anything custom — and the generator builds a valid token. Perfect for creating test tokens for protected endpoints during development.

Sign with HS256

Provide a shared secret and the tool signs your token with HMAC SHA-256 so it passes signature verification on your backend. Signing happens locally, so your secret is never transmitted.

Frequently asked questions

How do I generate a JWT token?

Fill in the header and payload claims, enter your signing secret, and the tool produces a signed JWT you can copy and use immediately.

Which signing algorithm is used?

Tokens are signed with HS256 (HMAC SHA-256) using the secret you provide.

Is my signing secret safe?

Yes. The token is generated and signed entirely in your browser, so the secret never leaves your device.

How do I check the token I created?

Paste it into the JWT Decoder to inspect the header and payload and verify the signature with your secret.

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