Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

For questions about closed-source software and how it relates to open source.

Closed-source software is software whose source code is not published or otherwise made available to the general public. Recipients of closed-source software can be restricted from selling or giving away the software.

history | excerpt history