Active Collab Alternatives for Linux

Redmine is a robust and flexible open-source project management web application designed to help teams manage projects, track issues, and collaborate effectively. It offers a wide range of features, including multi-project support, Gantt charts, time tracking, and extensive customization options through plugins and themes.

Trac is a mature open-source, web-based project management and bug tracking system. It integrates closely with version control systems and provides a wiki for documentation, making it a comprehensive tool for software development teams.

Mantis Bug Tracker is a free and open-source, web-based issue tracking system designed primarily for software defect tracking. It offers a straightforward interface and a range of features suitable for managing projects and tracking the lifecycle of bugs and issues.

fluxday is a free and open-source task and productivity management solution designed specifically for growing startups, focusing on streamlined task workflows and team accountability.

Ora is a comprehensive, real-time project management platform designed for teams of all sizes. It offers a flexible and intuitive interface, enabling teams to manage tasks, track time, collaborate effectively, and streamline workflows within a single workspace. From agile methodologies to traditional project planning, Ora provides the tools necessary to enhance productivity and achieve project goals.

GanttProject is a free, open-source project scheduling and management application for Windows, Linux, and macOS. It allows users to create Gantt and PERT charts, manage resources, assign tasks, track progress, and generate reports.

Avaza is a comprehensive cloud-based business management suite designed for service-based businesses. It seamlessly integrates project management, collaboration, time tracking, expense tracking, and online invoicing into a single, intuitive platform, accessible from anywhere on any device.

Phabricator is a comprehensive, web-based suite of tools designed to streamline software development workflows. It integrates code review, task management, bug tracking, internal documentation, and repository hosting into a single platform.

Bitrix24 is a comprehensive business management platform offering a robust suite of tools for CRM, project management, team collaboration, and communication. It caters to businesses of all sizes, with a free plan available for smaller teams, providing a centralized workspace to enhance productivity and streamline operations across various departments.

Open Atrium is a powerful open-source collaboration and project management platform built on Drupal. It provides a modular framework to create customized intranets, team sites, and project workspaces, facilitating communication, document sharing, task management, and more within organizations.

LibrePlan is a powerful, open-source web-based project management application designed to help organizations effectively plan, manage, and monitor projects. It offers robust features for task scheduling, resource allocation, collaboration, and reporting, all accessible through a standard web browser.

PMRobot was a project management software tailored specifically for the unique needs of software consulting companies. It offered tools for collaboration, task management, file sharing, and time tracking within project contexts.

FogBugz is a comprehensive web-based project management system designed to streamline development workflows. It integrates bug and issue tracking, project organization, team collaboration, and customer support features into a single platform, making it ideal for software development teams of all sizes.

GNOME Planner is a free and open-source project management software designed for individuals and small teams. It leverages the Work Breakdown Structure (WBS) methodology and provides tools for task management, resource allocation, and progress tracking.

Tuleap Open ALM is a comprehensive open-source platform designed for agile project management and software development teams. It integrates various tools like Git, Kanban, Scrum, and issue tracking into a single, unified environment.

Rachota is a free, portable time tracking application designed for individual users, freelancers, or small teams managing multiple projects. It provides accurate tracking, insightful reports, and a simple interface without the need for installation or internet connectivity.