Developer tools
JWT Decoder
Decode the readable header and payload of a JWT.
How it works
How this tool works
This browser-based tool processes the values you enter locally. Review its result before using it for an important decision or production system.
Questions answered
Frequently asked questions
Is the JWT Decoder free to use?
Yes. The JWT Decoder is free to use and does not require an account.
Does the JWT Decoder save my input?
No. Your input is processed in your browser and is not sent to a FreeToolGrid application server.
How accurate is the JWT Decoder?
The tool applies the stated calculation or conversion to the values you provide. Verify decisions involving money, health, tax, or legal matters with an appropriate professional or primary source.