Open Source Team Chat & Messaging Tools

Install your own group chat system with @mentions, DMs, and mobile support. One-time purchase, no monthly fees. Includes full source code for customiz

Install your own group chat system with @mentions, DMs, and mobile support. One-time purchase, no monthly fees. Includes full source code for customization. It is positioned as an open-source alternative to Microsoft Teams, Slack, Zoho Cliq, Pumble. Primary category: Team Chat & Messaging. Detected stack: JavaScript, Github Actions, CSS, Docker, GitHub, Redis. Review the imported record before publishing or editing SEO copy.

Cinny offers a simple, elegant, and secure interface for Matrix-based conversations, protected by end-to-end encryption.

Cinny offers a simple, elegant, and secure interface for Matrix-based conversations, protected by end-to-end encryption. It is positioned as an open-source alternative to Discord, Microsoft Teams, Slack, Session. Primary category: Team Chat & Messaging. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Typescript, Docker. Review the imported record before publishing or editing SEO copy.

Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.

Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol. It is positioned as an open-source alternative to Discord, Microsoft Teams, Skype, Slack. Primary category: Team Chat & Messaging. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for co

Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities. It is positioned as an open-source alternative to Discord, Slack, Guilded, Pumble. Primary category: Team Chat & Messaging. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requir

Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements. It is positioned as an open-source alternative to Microsoft Teams, Slack, Guilded, Zoho Cliq. Primary category: Collaborative Workspaces. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Build your own community space for gaming, chatting, and hanging out with friends worldwide. Customize your environment for the perfect social experie

Build your own community space for gaming, chatting, and hanging out with friends worldwide. Customize your environment for the perfect social experience. It is positioned as an open-source alternative to Discord, Microsoft Teams, Slack, Guilded. Primary category: Team Chat & Messaging. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Open source communication platform combining messaging, voice, video, and AI for organizations that need full data control, air-gapped deployments, an

Open source communication platform combining messaging, voice, video, and AI for organizations that need full data control, air-gapped deployments, and zero-trust security. It is positioned as an open-source alternative to Discord, Microsoft Teams, Skype, Slack. Primary category: Collaborative Workspaces. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Self-hostable group chat with servers, channels, voice, and moderation tools. No ads, no data mining, built under EU privacy law.

Self-hostable group chat with servers, channels, voice, and moderation tools. No ads, no data mining, built under EU privacy law. It is positioned as an open-source alternative to Discord, Slack, Session, Telegram. Primary category: Team Chat & Messaging. Detected stack: Github Actions, Bash, Docker, Python, AWS, AWS S3. Review the imported record before publishing or editing SEO copy.

Free Matrix-based messenger with end-to-end encryption, multi-platform bridges, and on-premise deployment. Connect across 30+ networks securely.

Free Matrix-based messenger with end-to-end encryption, multi-platform bridges, and on-premise deployment. Connect across 30+ networks securely. It is positioned as an open-source alternative to Microsoft Teams, Skype, Slack, WhatsApp. Primary category: Team Chat & Messaging. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organi

Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management. It is positioned as an open-source alternative to Microsoft Teams, Gmail, Front. Primary category: Team Chat & Messaging. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Typescript, Docker. Review the imported record before publishing or editing SEO copy.

A comprehensive collaboration platform offering end-to-end encrypted messaging, file sharing, and video calls with enterprise-grade security and compl

A comprehensive collaboration platform offering end-to-end encrypted messaging, file sharing, and video calls with enterprise-grade security and compliance features. It is positioned as an open-source alternative to Discord, Microsoft Teams, Skype, Slack. Primary category: Team Chat & Messaging. Review the imported record before publishing or editing SEO copy.

Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.

Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes. It is positioned as an open-source alternative to Microsoft Teams, Slack, Zoho Cliq, Pumble. Primary category: Team Chat & Messaging. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.