Glip Alternatives for Linux

Skype is a versatile communication platform offering free voice and video calls to other Skype users, as well as affordable calls to landlines and mobile phones worldwide. It provides instant messaging, file sharing, and screen sharing features, making it a comprehensive tool for personal and professional connectivity across various devices.

Slack is a leading cloud-based platform designed for team communication and collaboration. It offers a central location for conversations, file sharing, and app integrations, enabling teams to work more efficiently and stay connected regardless of location.

Trillian is a versatile, multi-protocol instant messaging client that unifies various communication platforms like IRC, XMPP, and more into a single, user-friendly interface. It's designed for both personal and team collaboration, offering features like encrypted chats, group collaboration tools, and extensive customization options.

Mattermost is an open-source, self-hosted platform for secure team collaboration, offering a Slack-alternative with emphasis on data control, privacy, and customizability. It provides a range of communication and project management tools for distributed and technical teams.

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.

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.

eXo Platform is an open-source enterprise social collaboration platform designed to connect employees, share knowledge, and improve communication and productivity within organizations. It offers a comprehensive suite of tools including social networking, document management, project management, and real-time communication features.

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.

HumHub is a free and open-source social network software and framework designed to empower teams and businesses with a platform for effective collaboration and communication. It provides a centralized hub for projects, tasks, and social interaction within an organization.

Matrix is an open network for secure, decentralized real-time communication. It provides a flexible protocol for developers to build collaborative applications like instant messaging, VoIP, and video conferencing, enabling seamless communication across different service providers.

Active Collab is a comprehensive project management platform designed for teams of all sizes. It offers a wide range of tools for task management, collaboration, time tracking, and invoicing, all integrated into one intuitive web-based interface, making it ideal for streamlining project workflows and boosting productivity.

Twist is a unique team communication tool designed to foster focused, organized, and asynchronous collaboration, minimizing real-time distractions. It provides threaded conversations, topic-based channels, and a clear inbox to help teams stay productive without the chaos of constant notifications, promoting thoughtful discussions over instant replies.

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.

Dialog Messenger is a robust, feature-rich enterprise messaging solution designed for businesses prioritizing security, privacy, and control. Available for both private server deployment and cloud hosting, it facilitates secure text, voice, and video communication across multiple devices, enabling seamless collaboration and real-time interaction within organizations.

Gitter is a free and open-source instant messaging and chat service designed specifically for developers and users of GitHub projects. It provides real-time communication within the context of software development teams and communities.

Buckets.co is a versatile workflow optimization and collaboration platform designed to enhance productivity across all levels of an organization. It leverages Kanban boards, robust task management, and real-time collaboration features to streamline projects and boost team performance.