Redmine is a free and open-source, web-based project management and issue tracking tool written using the Ruby on Rails framework.

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🚀 Overview

Redmine is a flexible project management web application designed to handle multiple projects, issue tracking, team collaboration, wikis, forums, and more. It provides a comprehensive suite of tools for software development teams and other project-based organizations to plan, track progress, and communicate effectively.

It solves the problem of rigid or expensive proprietary project management software by offering a customizable, open-source alternative that supports role-based access control, Gantt charts, calendars, time tracking, and integration with version control systems like Git and SVN. Originally developed by Jean-Philippe Lang in 2006, inspired by tools like Trac, Redmine was built to provide a cross-platform, cross-database solution for managing complex projects and subprojects with features like per-project wikis and forums.

Redmine is for software developers, open-source projects, companies, educational institutions, and public sector organizations needing robust, self-hosted project management without vendor lock-in. It's community-driven and continuously improved through volunteer contributions.

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✨ Key Features

• Flexible issue tracking system with custom fields, workflows, and email notifications (essential for bug tracking and task management)
• Gantt charts and calendars for visual project planning and timelines
• Per-project wikis, forums, news, and document management to centralize knowledge and discussions
• Time tracking, role-based access control, and SCM integration (Git, SVN, etc.) for development workflows
• Multilanguage support, LDAP authentication, REST API, and plugins for extensibility

Optional: Ongoing support for new plugins, themes, and security updates

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🛠 Tech Stack

• Frontend: Ruby on Rails, HTML, CSS, JavaScript
• Backend: Ruby on Rails
• Database: PostgreSQL, MySQL, MariaDB, SQLite
• Auth: Built-in, LDAP, multiple authentication support
• Hosting: Self-hosted (e.g., Apache/Nginx with Passenger or Puma)

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👥 Who Is This For?

This project is useful for:

• Developers who want to track issues, manage sprints, and integrate with SCM
• Teams looking for collaborative tools like wikis, forums, and Gantt charts
• Indie makers and open-source projects building scalable project management
• Companies and organizations in education, public sector, and research needing free, customizable PM software

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📸 Screenshots / Demo

• Live demo: https://demo.redminecloud.net/
• GitHub: https://github.com/redmine/redmine

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🔥 Project Status

• 🟢 Actively building

Last updated: 2026-03-24

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❓ FAQ

Is this project free?

Yes — Open Source under GNU General Public License v2 (GPLv2). Completely free to download, use, and self-host.

Is the source code available?

Yes — https://github.com/redmine/redmine (mirror of official SVN at https://svn.redmine.org/redmine)

Can I contribute?

Yes — Submit bug reports, feature requests, or patches via the issue tracker. Join forums, IRC (#redmine on libera.chat), or Slack. No coding required for documentation, testing, or donations. See https://www.redmine.org/projects/redmine/wiki/Contribute.

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📬 Contact & Links

• Website: https://www.redmine.org
• GitHub: https://github.com/redmine/redmine
• Forums: https://www.redmine.org/forums
• Chat: #redmine on https://libera.chat/

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