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Slack Platform provides APIs, SDKs, and developer tools for building apps, automations, bots, and integrations for Slack workspaces. It is aimed at developers and organizations that want to extend team messaging and workflow collaboration.
💡 Pick it for Microsoft 365 integration, enterprise governance, and richer meetings alongside team messaging.
Microsoft Teams is a collaboration platform that allows for chat, meetings, file sharing, and integrations with other Microsoft products.
Starting from $5 per user per month
💡 Pick it for community-led teams that prioritize voice, low-cost servers, and bot-driven real-time interaction.
Discord is a popular communication platform that offers text, voice, and video chat for gamers and communities.
Free with optional paid plans
💡 Pick it when self-hosting, open source, and control over sensitive technical communications matter most.
Mattermost is an open-source, self-hosted Slack alternative. It provides team collaboration and messaging tools for modern enterprises.
Free for the basic version, paid plans for enterprise features
💡 Pick it for an open-source, self-managed Slack alternative that also supports omnichannel customer communication.
Rocket.Chat is an open-source team communication platform that offers real-time chat, video conferencing, file sharing, and more.
Free, with paid plans available for additional features and support
💡 Pick it for organized asynchronous discussions, strong threading, and an open-source deployment option.
Zulip is a powerful open-source team chat software with threaded conversations to help teams collaborate more effectively.
Free for open-source and non-profit organizations, paid plans starting at $3 per user per month
💡 Pick it if your organization already runs on Google Workspace and wants chat tightly connected to Gmail and Drive.
Google Chat is a communication software developed by Google that allows users to message in direct groups or one-on-one.
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