| Odoo | Suite of open-source business apps written in Python |
| OpenProject | Collaborative Project Management |
| Wekan | Trello-like Kanban |
| Focalboard | Self-hosted project management tool |
| Taiga | Web-based tool for agile project management |
| Kanboard | Kanban board for small teams and individuals |
| tuleap | Improve management of software development and collaboration |
| eGroupWare | Enterprise ready web-based groupware suite with project management |
| Redmine | Flexible application written using the Ruby on Rails framework |
| LibrePlan | Project planning, monitoring and control |
| Trac | Project management and bug/issue tracking system |
| Leantime | Project management for the non-project manager |
| TaskBoard | Kanban-inspired app for keeping track of things |
| dotProject | Web-based, multi-user, multi-language project management application |
