Jira

vs

Assembla

OpenProject is an open-source, web-based project management system for location-independent team collaboration. The software allow you and your team to efficiently plan, collaborate and document the process of building projects. OpenProject is released under the GNU General Public License Version 3 and is available as free community edition and a commercial, hosted, enterprise edition.

Trac is an enhanced open source, wiki and issue tracking system for software development projects. With Trac, developers and teams can manage their projects with ease and write great software in the process. Trac provides bug tracking system that ca be used by organizations building open source or proprietary software. The system impose as little as possible on team's established development process and policies, while integrating seamlessly with version control systems including Subversion and Git.

Basecamp is a project management and collaboration tool that allows groups of people to share files, meet deadlines, assign tasks, and give feedback. The software is web-based an can be accessed from any device and anywhere as long as device has a web browser.

A web-based tool for DevOps lifecycle management and source code hosing. GitLab, much like GitHub use the open-source technology Git for repository management and code reversion. On top of that GitLab provide extra services like issue-tracking, wiki and CI/CD pipelines for code deployment. The main difference between GitLab and GitHub is that GitLab is open-source and the whole platform can be self-hosted on your own server. GitLab also provides the same hosted repository solutions provided by GitHub.

With Bitbucket developers and teams can collaborate better on software projects. BitBucket is a web-based version control repository hosting service owned by Atlassian. The software is a suite of tools built on-top of the free and open-source Git repoitory management and version control system. Bitbucket provides features that developers can use to build, test and deploy code with integrated CI/CD.

GitHub is a platform that provides hosting for software development version control for open source and closed source projects. The platform utilize the revision control system Git, and build services around this open-source technology. With GitHub developers and teams can collaborate on software projects and build, host, and promote source code of their own open-source projects. GitHub itself is closed-source and was acquired by Microsoft in 2018 for US$7.5 billion.