Apps to Team Collaboration

Mockup Designer is an intuitive web-based tool enabling users to rapidly create mockups, wireframes, and simple prototypes. It simplifies the initial stages of design and collaboration with a drag-and-drop interface and real-time co-editing capabilities.

Project Pier is a free, open-source, self-hosted project management application designed to streamline team collaboration, task management, and project tracking through an intuitive web interface built on PHP. It empowers teams to effectively manage their workflows and communications in a centralized environment.

Request Tracker (RT) is a highly customizable request tracking and workflow automation system written in Perl. It is extensively used by IT departments, customer support teams, and development organizations to manage tasks, issues, and communications with users effectively. RT provides a robust framework for handling diverse workflows, from simple helpdesk tickets to complex project management and bug tracking.

Openfire is a powerful, open-source instant messaging and group chat server built on the XMPP protocol. It enables real-time communication, collaboration, and presence management for individuals and organizations, offering robust features and a modular architecture for customization.

kune is a distributed social network and collaboration platform designed for privacy and freedom of speech. It offers features like group chat, file sharing, task management, and real-time collaboration, operating on a decentralized architecture.

Zulip is a powerful open-source group chat application designed for team collaboration. It uniquely structures conversations around topics, enabling users to easily catch up on important discussions and manage information overload. Zulip facilitates secure communication with integrated file sharing and various integrations.

todoyu is a comprehensive web-based collaboration and project management solution designed for teams and businesses of all sizes. It integrates essential tools like task management, time tracking, resource planning, a shared calendar, and client interaction features into a single platform.

Diagramo is a robust, open-source web-based diagramming tool perfect for creating flowcharts, graphs, and various diagrams directly in your browser. Built on HTML5, it offers real-time collaboration and flexible export options, making it accessible and versatile.

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.

Flyspray is a powerful yet lightweight, web-based bug tracking system designed to streamline software development and project management workflows. Built in PHP, it offers a customizable platform for tracking bugs, managing tasks, and fostering team collaboration.

SOGo is a powerful open-source groupware server designed for scalability and simplicity. It provides a comprehensive suite of collaborative features including webmail, calendaring, contact management, and task management, with strong support for standard protocols like CalDAV and CardDAV.

OpenProject is a powerful, web-based open-source project management software designed for teams of all sizes. It offers comprehensive tools for managing projects, tasks, teams, and communication in one centralized platform. Ideal for organizations prioritizing collaboration, flexibility, and data control.

CryptPad is a suite of collaborative and encrypted web applications, providing a secure and private environment for document editing, spreadsheets, presentations, and more. Leveraging zero-knowledge encryption, it ensures that only you and your collaborators can access your content, making it ideal for sensitive information.

Alfresco Community Edition is a powerful open-source enterprise content management (ECM) system offering robust document management, collaboration, and workflow capabilities.

TaskBoard is an open-source, self-hosted Kanban application designed for efficient task and project management. It offers a visual way to track progress through boards, lists, and cards, promoting clear workflows and team collaboration. Ideal for small teams and individuals seeking a simple yet powerful task management solution.

Restyaboard is a robust, open-source Kanban board alternative to Trello. It is designed for project management and team collaboration, offering a visual way to manage tasks, track progress, and communicate effectively.

Rocket.Chat is a comprehensive free and open-source team communication platform, offering real-time chat, audio/video conferencing, screen sharing, and file sharing. Designed for flexibility, it can be self-hosted on-premises for maximum control and customization, making it ideal for organizations prioritizing data privacy and security.

SWAD is an open-source Learning Management System (LMS) designed to facilitate online and blended learning environments. Built on a robust CGI core with supplement modules, it offers essential tools for document sharing, communication, content creation, and assessment, making it suitable for educational institutions and corporate training.

Kanboard is a free and open-source Kanban project management software that streamlines task and project workflows. It offers a minimalist and visual approach to managing tasks, making it ideal for teams seeking simplicity and efficiency in their collaboration efforts.

Wekan is a free and open-source Kanban board application designed for collaborative task management. Based on the principles of Kanban, it offers a visual way to organize work, track progress, and improve workflow efficiency for individuals and teams.

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.

Freeplane is a powerful and free mind mapping software that allows users to organize ideas, create outlines, and manage information in a hierarchical structure. It leverages the power of visual organization to facilitate brainstorming, project planning, and knowledge management.

Umbrello UML Modeller is a comprehensive, free, and open-source UML diagram tool. It provides robust capabilities for creating a wide range of UML and other modeling diagrams, supporting developers and designers in visualizing complex systems.

ClockingIT was a comprehensive project management, collaboration, and time tracking tool designed for teams. It provided a centralized platform for managing tasks, tracking time, handling issues, and facilitating team communication, aiming to streamline project workflows before its discontinuation.

Jitsi is a free and open-source suite of secure, flexible communication tools. It offers multi-platform support for voice (VoIP), video conferencing, and instant messaging, emphasizing privacy and ease of use with no account required to start a meeting.

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.