JSON Web Token (JWT) Generator
Configure and sign JSON Web Tokens (JWT) locally in your browser. Perfect for testing authentication and authorization flows.
Processed locally in your browser — nothing is uploaded.
How to Use
- Configure the JWT header (algorithm, key ID) and payload claims JSON.
- Choose a signing algorithm (HS256, HS384, HS512, RS256, or none) and supply a signing secret or private key.
- Click Generate JWT to create, sign, and display the final encoded token.
FAQ
Is this JWT generator safe to use?
Yes. All token generation, signing, and key generation are processed 100% client-side in your browser. Your secrets and private keys never leave your machine.
What signature algorithms are supported?
We support HMAC symmetric signing (HS256, HS384, HS512) and RSA asymmetric signing (RS256). You can also generate unsigned tokens by selecting "none".
How do I verify the generated JWT?
You can decode and inspect the generated token in our integrated JWT Decoder, or use the generated public key to verify signatures.