GitLab is a popular open source web-based Git repository manager. It has built-in source control management, issue tracking, and code review tools, plus the ability to integrate with popular continuous integration (CI) tools. It is written in Ruby and can be hosted on-premises or in the cloud.
GitLab provides a single platform for collaborating on large projects with multiple teams, including the ability to easily manage multiple versions of the same project and keep track of changes. It provides fine-grained access control so users can customize who can view and edit projects, making it ideal for projects with tight security requirements.
GitLab also provides tools to track workflow and automate development processes. It supports merge requests, which makes it easier for teams to review and integrate code changes, plus it has built-in CI/CD pipelines so teams can quickly test and deploy new features.
Overall, GitLab is a powerful and comprehensive platform for managing and collaborating on large software development projects. It helps teams work together more efficiently and securely, giving them the ability to quickly review, build, and deploy new features.