Overview - Redmine | WarmIndex | WarmIndex

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

🚀 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.

✨ 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

🛠 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)

👥 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

📸 Screenshots / Demo

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

🔥 Project Status

🟢 Actively building

Last updated: 2026-03-24

❓ 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.