Slack AlternativesOnly Self-Hosted apps categorised as Encrypted Chat Apps - Page 2

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 Encrypted Chat App 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 14 are Encrypted Chat Apps available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting Self-Hosted Encrypted Chat App alternatives to Slack are Element, Zulip, Rocket.Chat and Matrix.org.

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Slack alternatives are mainly Instant Messengers but may also be Group Chat Apps or Video Calling 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

Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms.

More about Slack

Slack alternatives page was last updated Sep 18, 2024

Mirotalk
Powered by WebRTC, Real-time video call, chat room and screen sharing entirely browser based.
52 Mirotalk alternatives
License model
- Free • Open Source
Application types
- Video Calling App
- Instant Messenger
Platforms
- Online
- Self-Hosted
Top Mirotalk Features
1. Screen Sharing
2. Desktop Sharing
3. Dark Mode
4. Privacy focused
5. End-to-End Encryption
6. Real time collaboration
7. VoiP Calls
8. No Tracking
9. Multiple Account support
10. Ad-free
11. No registration required
12. Voice Chat
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Mirotalk VS Slack
Is Mirotalk a good alternative to Slack?

cabal
Experimental p2p community chat platform.
15 cabal alternatives
License model
- Free • Open Source
Application types
- Group Chat App
- Encrypted Chat App
Platforms
- Mac
- Windows
- Linux
- Self-Hosted
cabal Features
1. Command line interface
2. Works Offline
3. Decentralized
4. Text chat
5. Channels
6. Peer-To-Peer
7. Serverless
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cabal VS Slack
Is cabal a good alternative to Slack?

dirc
Dirc is a peer-to-peer web application which uses WebRTC to set up connections between chat participants without requiring a back-end server. The static files can be self-hosted. Other features:
42 dirc alternatives
License model
- Free • Open Source
Application types
- Group Chat App
- Team Collaboration Tool
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Chrome OS
- Self-Hosted
dirc Features
No registration required
IRC
Show all NaN dirc features ▾
dirc VS Slack
Is dirc a good alternative to Slack?

PrivMX Fusion
PrivMX Fusion is safe and easy collaboration software for all kinds of teams, with virtual workspace protected by end-to-end encryption. Each team uses desktop/laptop client software and its own (zero-knowledge) PrivMX Team Server.
104 PrivMX Fusion alternatives
License model
- Freemium • Open Source
Application types
- Group Chat App
- Team Collaboration Tool
Platforms
- Mac
- Windows
- Linux
- Self-Hosted
- Software as a Service (SaaS)
+9
Top PrivMX Fusion Features
1. No Tracking
2. End-to-End Encryption
3. Kanban Board
4. AES-256 Encryption
5. VoiP Calls
6. Decentralized
7. Block Trackers
8. Two-factor Authentication
9. Team work
10. Task Scheduling
11. Task Tracking
12. Share screenshots
Show all NaN PrivMX Fusion features ▾
PrivMX Fusion VS Slack
Is PrivMX Fusion a good alternative to Slack?

MyChat
MyChat is an instant messenger that works in LAN and over the Internet. Reliable in slow connections. Do not require too many system resources. The program has its own server where a user control everything happening in the chat.
41 MyChat alternatives
License model
- Freemium • Proprietary
Application types
- Group Chat App
- Instant Messenger
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- Self-Hosted
+5
Top MyChat Features
1. Screen Sharing
2. Encrypted Backup
3. Works Offline
4. Privacy focused
5. Ad-free
6. Real time collaboration
7. Kanban Board
8. Portable
9. Spam Filter
10. Lightweight
11. On-premises software
12. Workflow
Show all NaN MyChat features ▾
MyChat VS Slack
Is MyChat a good alternative to Slack?

ARKNet
A decentralized fault-tolerant platform for corporate interaction within companies and for private communication with clients.
30 ARKNet alternatives
License model
- Paid • Proprietary
Application type
- Encrypted Chat App
Platforms
- Windows
- Self-Hosted
+8
ARKNet Features
1. Decentralized
2. AES-256 Encryption
3. VoiP Calls
4. End-to-End Encryption
5. Private messaging
6. Encrypted VPN
7. P2P Network
8. Peer-To-Peer
9. Private Chat
10. Data Protection
Show all NaN ARKNet features ▾
ARKNet VS Slack
Is ARKNet a good alternative to Slack?

Modular.im
Awesome hosting for Matrix chat and integrations - built on the Matrix open ecosystem for secure, decentralised communication, by the creators of Matrix.
11 Modular.im alternatives
License model
- Paid • Open Source
Application types
- Video Calling App
- Encrypted Chat App
Platforms
- Online
- Self-Hosted
Modular.im Features
1. VoiP Calls
2. Support for MarkDown
3. DRM Free
4. Decentralized
5. Community-based
6. File Sending
7. Custom widgets
8. IRC
9. Server side history
10. Matrix Protocol
Show all NaN Modular.im features ▾
Modular.im VS Slack
Is Modular.im a good alternative to Slack?