Microsoft Teams is described as 'Integrates seamlessly with Office 365 to centralize chat, files, and tools. Supports HD audio and video meetings, available across multiple platforms' and is a popular Group Chat app in the office & productivity category. There are more than 100 alternatives to Microsoft Teams for a variety of platforms, including Web-based, iPhone, Android, Windows and Mac apps. The best Microsoft Teams alternative is Element. It's not free, so if you're looking for a free alternative, you could try Element or Jitsi Meet. Other great apps like Microsoft Teams are Jami, Zulip, Wire and Mattermost.
Provides secure collaboration with end-to-end encryption, supporting chat, voice, and video calls. Available on all major platforms, it enables digital sovereignty with a decentralized design and interoperability through bridges to systems like Slack and Teams. Includes enterprise-grade SaaS.
Open-source video conferencing platform with encryption by default, up to 75 participants, live group chat, HD audio, screen and document sharing, Etherpad editing, mobile and browser support, custom deployment options, privacy-first features, and community-driven development.
Offers unified communication for teams with advanced real-time messaging, contextual features, versatile chat tools, and organized conversations in dedicated channels with integrated file sharing on Mac, Windows, Linux, and mobile platforms for enhanced productivity.
Open source decentralized communication platform supporting secure end-to-end encrypted calls, messaging, group conferencing, file and media sharing, SIP compatibility, multi-device sync, and strong privacy, available across desktop and mobile systems.
Threaded group conversations combine live and asynchronous messaging, separating topics for organized collaboration, supporting open-source, cloud, and self-hosted deployments, secure communication with encryption, and multi-platform access for diverse teams.
Secure communication platform featuring encrypted chats and calls, file and media sharing, self-deleting messages, device verification, group collaboration, and customizable settings. Supports use across multiple devices with no phone number required for access.
Self-hosted collaboration platform featuring chat, workflow automation, voice and video calling, screen sharing, AI capabilities, broad third-party integration support, cross-platform apps, compatibility with Slack imports, and flexible deployment options for secure team communication.
It is the brand new, and fastest ever, Matrix client. It is for personal and community use, and will support enterprise functionality later this year.
Provides secure end-to-end encrypted video calls with privacy features such as background blur, noise reduction, and meeting locks, supports up to 50 free participants, guest links, ad-free use, seamless calendar integration, and multi-device access.
Open-source chat server supporting real-time group, direct, and private messaging, video calls, file sharing, helpdesk chat, API integrations, desktop notifications, emojis, LDAP authentication, cross-platform apps, and customizable extensions for teams.
Provides video conferencing with high-quality video and screen sharing, supporting up to 100 participants, real-time whiteboard collaboration, group messaging, and VoIP. Compatible across devices including smartphones and PCs, offering flexibility for remote meetings.
Peer-to-peer group chatting over Tor and IPFS, with local-first encrypted messaging and no central servers, offers privacy-focused decentralized collaboration for teams, supporting desktop and mobile. FOSS, open to contributors, and avoids surveillance-based tracking.
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Element has come a long way, and is now a fully-featured group chat application, with spaces (to group several rooms), numerous bridges so people are not locked in one single tool, and great integrations.