Target Audience
App Alternatives
Open-source Slack Alternative for secure team communication

Async team communication built around organized conversations

Secure team communication with self-hosted and cloud deployment
Open-source team chat organized around topics

Open-source secure messaging and collaboration built on Matrix
What is Slack
Slack is a team communication platform for messaging, meetings, files, workflows, and app integrations. It supports startups through enterprise organizations.
Overview
Slack is a workplace communication and collaboration platform built around channels, direct messages, huddles, file sharing, and shared workspaces. Teams can organize conversations by project, topic, or function and collaborate with people outside their organization through Slack Connect.
Who should use it
- You want team conversations organized into channels by project or function
- You need integrations that connect Slack with your existing business tools
- You want built-in huddles for quick audio and video collaboration
- You need workflows and automations without building every process yourself
- You want an API for building custom apps and integrations
Key Features
- Channels for organized team conversations
- Direct messages and Slack Connect for external collaboration
- Huddles for audio and video meetings
- Canvas for shared documents and project information
- Lists for managing tasks and work items
- Workflow Builder for no-code automations
- AI summaries, search, Slackbot and daily recaps
- API and SDKs for custom Slack apps
Integrations Supported
Frequently Asked Questions
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