all the essential qt tools for all stages of software development lifecycle: planning, design, development, testing, and deployment.

gtk is a free and open-source cross-platform widget toolkit for creating graphical user interfaces.

this is a discussion forum run by qt centre --- the ultimate qt community site.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

kdab - software experts in qt, c++ and 3d / opengl. we have profund expertise in desktop and embedded software services for all kind of industries.

codebrowser homepage

zetcode provides accessible tutorials for c#, go, python, java, and javascript programming languages.