Build a JSON Web Token locally: enter the header and payload as JSON, provide a secret, and sign with HMAC-SHA256. Your secret never leaves the browser.
Your data is processed entirely in your browser. Nothing is uploaded to any server.
Yes, JWT Generator is 100% free and runs entirely in your browser.
No. Everything is processed locally on your device; nothing is uploaded.
No. JWT Generator runs in any modern browser, no installation or signup required.
Yes. Your input stays in your browser and is never stored or transmitted.