Self-Hosted Slack Alternatives

Slack is not available as a self-hosted solution but there are plenty of alternatives for power users and business that want to host a solution on-premise. The best Self-Hosted alternative is Mattermost, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Slack and many of them are available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting Self-Hosted alternatives to Slack are Element, Zulip, Rocket.Chat and Matrix.org.

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Slack alternatives are mainly Group Chat Apps but may also be Instant Messengers or Encrypted Chat Apps. Other popular filters includes Self-Hosted + Open Source. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Slack.

Slack

851

Group Chat App
Freemium • Proprietary

Slack is a unified communication platform built with an optimized workflow to keep modern teams focused and productive. A familiar chat interface facilitates discussions while advanced features are easily exposed based on...

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Slack alternatives page was last updated Jul 14, 2024

Weavy
Add contextual activity feeds, chat, and secure file sharing directly into your apps to increase user engagement, improve in-app retention, and reduce customer churn.
44 Weavy alternatives
License model
- Paid • Proprietary
Application types
- Group Chat App
- Team Collaboration Tool
Platforms
- Windows
- Online
- Self-Hosted
- .NET Framework
Weavy Features
1. Real time collaboration
2. On-premises software
3. Direct Messaging
4. Integrated Chat
5. Unlimited users
6. Integrated File Sharing
7. Embeddable
Show all NaN Weavy features ▾
Weavy VS Slack
Is Weavy a good alternative to Slack?

Fuse Chat
Fuse Chat is a Video Chat script userfriendly php socket.io script With is fully responsive design whatever if you are using a mobile a computer or even a tablet will always fit your screen and give you the best chat experience possible.
87 Fuse Chat alternatives
License model
- Paid • Proprietary
Application types
- Group Chat App
- Instant Messenger
Platforms
- Online
- Self-Hosted
Fuse Chat Features
Text chat
Show all NaN Fuse Chat features ▾
Fuse Chat VS Slack
Is Fuse Chat a good alternative to Slack?

Mazey
Mazey is your team’s or family's collective brain and communication hub and brings order to their communication, knowledge sharing, and task tracking.
18 Mazey alternatives
+2
License model
- Free • Proprietary
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Chrome OS
- Android Tablet
- iPad
- Self-Hosted
Mazey Features
1. Family Calendar
2. Multiple channels
3. Note organization
4. Organization
5. Remove email communication
6. Direct Messaging
Show all NaN Mazey features ▾
Discontinued
After an almost three year run, Mazey will be shutting down on March 31st, 2019.
Mazey VS Slack
Is Mazey a good alternative to Slack?

qTeams
The future of Team collaboration. Secure. Cross platform. Manage Teams, Groups, Private & Public Channels. Invite. Meet. Work. Automate with over 700'000 Apps. Built-in Webinar & Webmeetings. Available as PrivateCloud or On Premise. Decentralized.
36 qTeams alternatives
License model
- Paid • Open Source
Application types
- Group Chat App
- Web Conferencing Tool
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- Software as a Service (SaaS)
+7
qTeams Features
1. Screen Sharing
2. Gitlab integration
3. GitHub Integration
4. Team work
5. LDAP support
6. Video Conferencing
7. Audio Conferencing
8. Webinar
Show all NaN qTeams features ▾
qTeams VS Slack
Is qTeams a good alternative to Slack?

Pensil
Pensil is a community building platform that brings together members, engaging discussion & live events for brands and creators.
28 Pensil alternatives
License model
- Freemium • Open Source
Application types
- Group Chat App
- Video Calling App
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- Google Chrome
- Software as a Service (SaaS)
+2
Top Pensil Features
1. Cloud Sync
2. Privacy focused
3. No registration required
4. End-to-End Encryption
5. Real time collaboration
6. Dark Mode
7. Sync with Google Calendar
8. Support for MarkDown
9. Multiple Account support
10. Lightweight
11. Online community platform
12. Live calls
Show all NaN Pensil features ▾
Pensil VS Slack
Is Pensil a good alternative to Slack?

Adapt Chat
Grow a community, connect with your friends, or whatever you're capable of with Adapt, a lightweight and customizable messaging platform which favors your privacy.
51 Adapt Chat alternatives
License model
- Free • Open Source
Application type
- Group Chat App
Platforms
- Online
- Self-Hosted
Top Adapt Chat Features
1. Dark Mode
2. Lightweight
3. End-to-End Encryption
4. Real time collaboration
5. VoiP Calls
6. Privacy focused
7. Support for @mentions
8. Multiple Account support
9. Screen Sharing
10. No Tracking
11. Support for MarkDown
12. Ad-free
Show all NaN Adapt Chat features ▾
Adapt Chat VS Slack
Is Adapt Chat a good alternative to Slack?