Google Chat is described as 'Instant messaging and group collaboration tool with thread-based channels, real-time document editing, Google Workspace integration, search, and enterprise security' and is a instant messenger in the social & communications category. There are more than 50 alternatives to Google Chat for a variety of platforms, including Web-based, Android, iPhone, Windows and Mac apps. The best Google Chat alternative is Signal, which is both free and Open Source. Other great apps like Google Chat are Telegram, Element, Discord and Matrix.
Jitsi Desktop (previously SIP Communicator) is a legacy audio/video and chat communicator with full encryption, precedessor of Jitsi Meet .
Mattermost is a secure, open source platform for communication, collaboration, and workflow orchestration across tools and teams.
Zulip is the only modern team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way.
Provides a chat experience over email, with all messages and contacts stored on user devices, open source code, group media support, and compatibility with any provider. No central servers, no tracking, works without SIM, and can be used by anyone just via email.
Offers secure messaging with end-to-end encryption, unlimited free calls, group chats for up to 250 members, rich media sharing, emoji reactions, AR lenses, self-destruct messages, affordable international calls, community channels, and robust privacy across devices.
A digital workspace organizer that allows you to unify as many applications as you want, all in one place. It is perfect for those who care about productivity while working with many business and personal apps.
Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved easy encryption [OTR, OMEMO, or GPG].
Quiet is an alternative to team chat apps like Slack, Discord, and Element that does not require trusting a central server or running one's own. In Quiet, all data syncs directly between a team's devices over Tor with no server required.
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.
BigBlueButton enables universities and colleges to deliver a high-quality learning experience to remote students.
Franz is a free messaging app / former Emperor of Austria and combines chat & messaging services into one application. Franz currently supports Slack, WhatsApp, WeChat, HipChat and many more. You can download Franz for Mac, Windows & Linux.
Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between all of them! We think conversation should be easily shared between all of your devices, not trapped as text messages on your phone.
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