How to use JWT Decode (npm)
- Type or paste your JWT into JWT Decode (npm)'s input area.
- The result is computed live in your browser as you edit the input.
- Use Copy to keep or reuse the result.
About this tool
There is no server behind JWT Decode (npm). JWT Decode (npm) decodes a JSON Web Token in your browser, showing the header and payload without verifying secrets remotely.
The token is parsed on your device and never transmitted. It behaves the same on desktop and mobile, with nothing stored remotely.
Frequently asked questions
What does JWT Decode (npm) do?
Use JWT Decode (npm) to decode your input without installing anything; everything happens client-side.
Is JWT Decode (npm) free to use?
Yes — JWT Decode (npm) is completely free, with no usage limits.
Where is my data processed by JWT Decode (npm)?
Entirely in your browser — JWT Decode (npm) keeps your data on your own machine and sends nothing anywhere.
Does JWT Decode (npm) verify the JWT signature?
JWT Decode (npm) decodes the token locally so you can inspect its header and payload; verification needs the matching key.
Does JWT Decode (npm) work offline?
Once the page has loaded, JWT Decode (npm) keeps working with no network connection.