An open source (free) version control system. See also Version control
An IDE is an integrated development environment, a software tool to help developers build, test, and debug software. Most IDEs include components such as syntax highlighting, code auto completion, refactoring, version control, debugging tools, code searching. Popular IDEs include Visual Studios (VS Code), NetBeans, Eclipse, IntelliJ, etc.
According to Git, the most popular version control system: > “Version control is a system that records changes to a file or set of files over time so that you can recall specific versions later Git This type of system allows for multiple developers to track and store changes in the same project—and revert to previous versions if necessary.