OpenProject

vs

Mantis Bug Tracker

With Trello you can orginaize anything with anyone. Trello is a web-based kanban list-making and collaboration tool. Over 35 million registered users use Trello to organize their project across teams, at work, at home or elsewhere.

Zenkit is a product productivity software suite designed for your natural workflow. Zenkit include products like Zenkit Base, Zenkit To Do, Zenkit Zenchat and Zenkit Hypernotes, all which can be bought as stand alone products or as a part of the Zenkit package. The Zenkit platform can support and digitalize almost any collaboration workflow and methodology.

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.

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.

AceProject is a project management tool that includes a project overview dashboard, gnatt charts and time sheet tables. With AceProject you can streamline the project management process by viewing and reporting progress across your entire portfolio. Or visually track project and task progress, view deadlines and task dependencies using interactive gantt charts. AceProject allow you as a project manager and your team to get a broad picture of your entire project while also providing tools to dive deeper into specific tasks and deligate them accrodingly.

GitBucket is a free and open-source Git platform built on the JVM. GitBucket is written in Scala and released under the Apache License Version 2.0.