Atlassian Confluence Server is a popular on‑premise collaboration and documentation platform. Below is a curated list of 20 self‑hosted project‑management solutions that can serve as alternatives, offering wikis, issue tracking, agile boards, document management, and more.
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Enterprise‑grade intranet and collaboration suite with document libraries, wikis, and integrated project‑management features.
Open‑source wiki engine with powerful extensions for project documentation, knowledge bases, and agile planning.
Simple, file‑based wiki focused on documentation; extensible with plugins for task tracking and project dashboards.
The software behind Wikipedia; can be customized with extensions for project management, issue tracking, and visual timelines.
Feature‑rich open‑source project management suite with Gantt charts, agile boards, wiki, and document management.
Flexible Ruby on Rails based issue tracker with wiki, forums, time tracking, and Gantt chart capabilities.
Agile project management platform supporting Scrum & Kanban, with an integrated wiki and backlog management.
Suite of open‑source tools for code review, task tracking, wikis, and project planning.
Lightweight project management and bug‑tracking system with an integrated wiki and roadmap.
Comprehensive DevOps platform offering Git repository hosting, CI/CD, issue boards, and a built‑in wiki.
Simple, self‑hosted Kanban board with task limits, analytics, and optional wiki plugins.
Open‑source Trello‑like Kanban board that can be self‑hosted and extended with markdown documentation.
All‑in‑one ALM platform with agile planning, document management, wiki, and traceability.
Modular ERP with a robust project management app, Gantt view, timesheets, and collaborative notes.
Collaboration suite offering task management, document sharing, intranet wiki, and CRM on‑premise.
Enterprise ALM platform with project planning, document repositories, wikis, and agile boards.
Integrated development and project management tool with planning, tracking, and collaborative documentation.
Open‑source test‑driven project management system covering Scrum, Kanban, wiki, and bug tracking.
Distributed version control system that includes an integrated wiki, bug tracker, and timeline.
Self‑hosted issue and project tracking platform; often paired with Confluence but can serve as a standalone alternative.