Encoders & Converters
JWT Decoder
Paste a JWT to decode its header and payload. Nothing is sent anywhere.
❓ Frequently Asked Questions
What is the JWT Decoder used for?
Decode a JSON Web Token's header and payload (no verification).
Is the JWT Decoder free and private?
Yes — it's completely free and runs entirely in your browser. Whatever you enter stays on your device and is never uploaded to any server.
Do I need to install anything to use the JWT Decoder?
No. It works in any modern web browser on desktop, tablet, or phone — no downloads, no browser extensions, and no account required.