home page of the apache software foundation

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.

a site for people who think. intellectual resources, programming, astronomy, science, mathematics, java/javascript applets, programming instruction, home of arachnophilia.

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

reduce security risk from bad open source packages and ensure the packages you rely on keep getting better.

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jitpack makes it easy to release your java or android library. publish straight from github or bitbucket.

b4x is a programming language and a set of cross-platform rad development tools that allow complete beginners, citizen developers, and professionals to build real-world android, ios and desktop solutions

the bat! is an email program for windows that protects the correspondence and empowers the users to handle large amounts of emails quickly and efficiently