Slack is described as 'Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms' and is a leading Group Chat app in the social & communications category. There are more than 100 alternatives to Slack for a variety of platforms, including Web-based, Android, iPhone, Windows and Mac apps. The best Slack alternative is Zulip. It's not free, so if you're looking for a free alternative, you could try Zulip or Element. Other great apps like Slack are Rocket.Chat, Discord, Matrix and Trello.
Open source chat platform offering end-to-end encrypted messaging, uncensored communication, markdown support, file sharing, self-hosting, multi-device sync, server management, voice or video calls, no data tracking, transparent codebase, and community-driven development.
United States
Dino is a modern open-source chat client for the desktop. It focuses on providing a clean and reliable Jabber/XMPP experience while having your privacy in mind. Using GTK+/Vala.
Germany
EU
Secure team messaging platform with organized topic-based conversations, real-time collaboration on Docs, Sheets, Slides, integrated calendar scheduling, one-click meetings, shared tasks and files, Google Workspace support, admin controls, compliance, and advanced search.
United States
Communicate goals, schedule tasks, and manage project timelines, all in one collaboration suite. Swit combines team chat and task management for a fast and efficient workflow.
United States
Seamlessly integrated Video conference, messenger, doc creation and storage, smart integrated calendar, AI assisted real time translations and more all wrapped up a single mobile -first next gen product.
Singapore
Element Pro is a secure enterprise communication app built on the Matrix protocol, designed for organizations that need encrypted, compliant, and fully controlled collaboration. It combines real-time messaging, voice and video calls, and file sharing with strong administrative...
United Kingdom
Stackfield is a secure All-in-one collaboration tool made in Germany. It combines project and task management, team chat, video calls, documents and more.
GermanyEU
The all-in-one business communication platform from Meta that securely combines chat, video, groups and your intranet with the work tools you already use.
United States
Colibri is an open source chat platform built on the AT protocol for communities big and small. It gives you the ability to create communities, manage members, and communicate through text, voice, and forum channels, all while maintaining true ownership of your data.
GermanyEU
United States
Zoho Cliq simplifies your team communication with organized conversations, information that's easy to find and by connecting to the tools you love. Transform ideas into reality with your team. With channels, your team communication is visible, transparent and efficient.
India
Ryver provides all of your team communications in one place: chats, posts, and files. Invite as many team members and guests as you need.
United States
