Explore by tags

Alternative toSlack

Self-hosted web-based XMPP chat client for any server

• 3,301 GitHub stars
• MPL-2.0Licence MPL-2.0
• #Chat

Alternative toRetool

Low-code platform for building internal apps, self-hosted

• 28,334 GitHub stars
• GPL-3.0Licence GPL-3.0
• #No Code

Alternative toDiscord

Self-hosted open source Discord alternative with servers

• 3,406 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #Chat

Alternative toRetool

Build internal tools with a drag-and-drop UI and 50+ connectors

• 41,110 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #No Code

Alternative toSlack

Open protocol for secure, decentralized messaging and VoIP

• 4,716 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #Chat

Alternative toSlack

Secure team chat built on the Matrix open protocol

• 13,601 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #Chat

Alternative toSlack

Organized team chat with threaded conversations, self-hostable

• 26,085 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Chat

Alternative toStack Overflow for Teams

Self-hosted Q&A platform for internal team knowledge

• 921 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toThreema Work

Free encrypted P2P messaging and voice calls, no servers

• 2,696 GitHub stars
• GPL-3.0Licence GPL-3.0
• #Chat

Alternative toWWhatsApp

Free P2P encrypted messaging, calls, and file sharing

• 168 GitHub stars
• GPL-3.0Licence GPL-3.0
• #Chat