l8w8jwt GUI is a graphical user interface wrapper around the open-source crypto library "l8w8jwt", which is written entirely in C and Apache-2.0 licensed, available on github.com/GlitchedPolygons/l8w8jwt.
It's very handy for usage during development and/or for testing and implementing web services of any kind where auth tokens are involved. Qt 6 was used for implementing this GUI.
l8w8jwt GUI is available for download on the 'Releases' page for Windows, Linux (Ubuntu 20) and Mac on the x64 and Apple M1 architectures. More are potentially supported, but not officially tested.
This GUI's source code is Apache-2.0 licensed and available on github.com/GlitchedPolygons/l8w8jwtgui - but also available for purchase on glitchedpolygons.com (ships with some cool, additional stuff, PDF files/manual, etc...).
Please consider buying it from there to support the development of nifty tools like this :)