What is Open Source Software
Open source software is computer software with source code that anyone can view, modify, and share freely.
It's often said that anyone can change the official version of an open source project at will—in fact, anyone can make and share a modified version, while the project's maintainers decide which changes enter the shared version.
Open source software encourages collaboration and innovation by allowing people worldwide to improve and adapt software, making technology more accessible and customizable.
Imagine a recipe book that everyone can read, change, and share with friends; open source software is like that but for computer programs.
Open source software sits behind many everyday tools, from websites to phones, so understanding how it works can help you make better choices about the technology you use and trust.
Suppose a school uses an open source note-taking program and wants a button for a special kind of report. A programmer changes the code, tests the button, and shares the change with the project's maintainers. The maintainers might accept it into the main version, or the school might keep using its own version if they do not.
Licenses set the sharing rules
Open source licenses spell out what people can do with the code, such as whether they must share their changes when they pass the software on.
Anyone can check the code
Because the source code is visible, people can look for mistakes, security problems, or unwanted features instead of relying only on the maker's word.
Support can come from communities
Many open source projects are maintained by volunteers, companies, or both, with users helping each other through guides, forums, and fixes.