Question 1

What algorithms are supported?

Accepted Answer

HS256 (HMAC-SHA256), HS384 (HMAC-SHA384), and HS512 (HMAC-SHA512). All use the Web Crypto API for signing.

Question 2

Is my secret key safe?

Accepted Answer

Yes. Everything runs locally in your browser. The secret key and generated token never leave your device.

Question 3

Can I use this for production?

Accepted Answer

This tool is great for development and testing. For production, use a server-side JWT library with proper key management.

🔐 JWT Generator

❓ Frequently Asked Questions