Top Alternatives to Rocket.Chat

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.

Glip, by RingCentral, is a comprehensive team collaboration platform combining real-time messaging, video calls, task management, and file sharing into a single, searchable hub. Designed to streamline communication and workflow, it aims to replace disjointed tools with a unified digital workspace.

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.

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.

Let's Chat is a self-hosted, open-source messaging application built for small to medium-sized teams. It provides persistent chat rooms, private messaging, and collaboration tools, prioritizing ease of deployment and control over your data.

Whaller is a secure and private team collaboration platform that enables organizations to create their own internal social networks, ensuring data privacy and control away from public social media platforms. It offers a comprehensive suite of tools for communication, file sharing, task management, and project organization.

Hibox is an all-in-one collaboration platform combining task management, team chat, video conferencing, and integrated file sharing. Designed for businesses of all sizes, it streamlines communication and project workflows within a single intuitive interface, eliminating the need for multiple disparate tools.

TribeScale is an all-in-one platform designed to streamline team coordination, encompassing communication, goal management, task delegation, and progress tracking to enhance productivity and alignment within organizations.

Flock is a comprehensive communication and collaboration platform designed for teams. It streamlines workflow and enhances productivity through integrated messaging, project management tools, and seamless file sharing within a secure environment.

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.

Cisco WebEx is a comprehensive and secure platform for online meetings, video conferencing, and team collaboration, catering to businesses of all sizes. It offers a wide range of tools to facilitate communication and productivity in a remote or hybrid work environment.

YakYak is an unofficial desktop client for Google Hangouts, providing a dedicated application experience outside of a web browser with features focused on convenience and improved usability.