The best open source alternative to Redmine is AFFiNE. If that doesn't suit you, our users have ranked more than 100 alternatives to Redmine and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Redmine are Kan.bn, Taiga.io, OpenProject and Odoo.
Open-source, privacy-focused workspace combining note-taking, project and task management, Kanban board, interactive whiteboard, Pomodoro timer, Markdown support, offline access, real-time team collaboration with @mentions, goal tracking, subtasks, and customizable features.
Open source kanban platform offering team collaboration, workspace members, board visibility controls, Trello import, card labelling, detailed activity logs, commenting, and self-hosting options, plus upcoming board templates and third-party integrations.
Taiga is the easy and intuitive yet powerful agile project management tool for multi-functional teams. Taiga has a best in class Sprint task board, and you can seamlessly migrate to Kanban if needed.
Open source software that enhances team collaboration and productivity through features like Gantt charts, issue tracking, Scrum support, and document management. Supports classic, agile, or hybrid management styles while ensuring robust data protection and flexible task assignment.
OpenProject has everything locked up behind the subscription. Redmine is truly free and open source while open project is not
Open-source business application suite developed in Python, offering ERP, CRM, e-commerce, and project management, reducing software needs and synchronization costs with over 260 core modules.
Open source alternative supporting project management, issue and task tracking, custom workflows, Kanban, list, calendar views, analytics, imports, secure encryption, Slack and GitHub integrations, Agile and Waterfall frameworks, and advanced customization.
Trac is an enhanced wiki and issue tracking system for software development projects. Trac uses a minimalistic approach to web-based software project management. Our mission is to help developers write great software while staying out of the way.
Trac can manage only one project. Redmine able to manage multiple projects.
Launchpad is a collaboration and Bazaar code hosting platform for (primarily open-source) software projects.
Mantis Bug Tracker is a free and open source, web-based bug tracking system. It is written in the PHP scripting language and works with MySQL, MS SQL, and PostgreSQL databases and a webserver. MantisBT can be installed on Windows, Linux, Mac OS, OS/2, and others.
It's a bilateral relation because redmine is first a good alternative to Mantis I prefer mantis for complex projects
Adaptive suite integrating project, IT service, and source code management for technology teams, featuring time tracking, issue and document management, customizable dashboards, third-party integration, agile and waterfall support, and cloud deployment options.
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Redmine is based on repo management. Taiga is more "project" management. IE: doesn't deal with code at all.