19 Free Slack Alternatives (Hosted, Self-Hosted, and Open Source)

19 Free Slack Alternatives

Hosted Alternatives:

1. Mattermost: A popular open-source alternative to Slack, offering similar features and integrations.
2. Rocket.Chat: Another open-source option with strong community support and a wide range of features.
3. Zulip: A cloud-based messaging platform known for its threaded conversation style and efficient search.
4. Discord: Originally designed for gamers, Discord has evolved into a versatile communication platform with voice and video chat capabilities.
5. Element: A secure and decentralized messaging app built on the Matrix protocol.
6. Wire: A secure messaging platform with end-to-end encryption and a focus on privacy.
7. Jitsi Meet: A free video conferencing and messaging platform that can be self-hosted or used through a web browser.

Self-Hosted Alternatives:

1. Gitter: An open-source chat platform that can be self-hosted on your own server.
2. Riot: Another open-source chat platform based on the Matrix protocol that can be self-hosted.
3. Conversations: A lightweight and customizable self-hosted chat platform.
4. TeamSpeak: A popular voice and text chat platform that can be self-hosted for private use.
5. Mumble: A low-latency voice and text chat platform that can be self-hosted.

Open-Source Alternatives:

1. IRC (Internet Relay Chat): A classic internet communication protocol that can be used with various clients like irssi or mIRC.
2. XMPP (Extensible Messaging and Presence Protocol): An open-source protocol for instant messaging and presence that can be used with clients like Pidgin or Gajim.
3. Matrix: A decentralized communication protocol that can be used with various clients like Element or Riot.
4. WebRTC (Web Real-Time Communication): A technology that enables real-time communication directly in web browsers without requiring plugins.

Choosing the Right Alternative:

The best Slack alternative for you will depend on your specific needs and preferences. Consider factors such as:

• Features: Do you need voice and video chat, file sharing, integrations, or specific customization options?
• Security: How important is data privacy and security to you?
• Cost: Are you looking for a free solution or are you willing to pay for premium features?
• Ease of Use: How easy is it to set up and use the platform?

By carefully evaluating these factors, you can find the perfect Slack alternative to suit your team’s communication needs.