Is my JWT data sent to a server?
No. JWT decoding is done locally in your browser, so your token never leaves your device.
Zyphoric
JWT Decoder
Decode JSON Web Tokens securely in your browser, inspect claims, and verify token structure without sending data to a server.
Category
Standard
Privacy
Runs in your browser when possible.
Workflow
Format, inspect, convert, or debug faster.
Frequently asked questions
Can I inspect the payload and header?
Yes. The tool shows both the header and payload details in a readable format.