GitLab is a web-based Git repository manager with wiki and issue tracking features. Developed by GitLab Inc.
License: Open Source
Atlassian Stash (now known as Bitbucket Server) is well-integrated with other Atlassian tools and offers robust code review features, making it ideal for teams already using the Atlassian suite. GitLab, on the other hand, provides a comprehensive DevOps platform with a user-friendly interface and customizable CI/CD, making it suitable for teams looking for an all-in-one solution.