Open Source Guilded Alternatives

Rocket.Chat is a powerful, open-source communication platform designed to revolutionize the way teams collaborate. With its robust features and flexible deployment options, Rocket.Chat caters to organizations of all sizes, from small startups to large enterprises.

Key benefits of Rocket.Chat include:

• Enhanced Security: Self-hosted options and end-to-end encryption ensure your data remains private and secure.
• Customization: Tailor the platform to your needs with a wide range of integrations and API access.
• Scalability: Easily grow your communication infrastructure as your team expands.
• Multi-platform Support: Access Rocket.Chat from web, desktop, or mobile devices for seamless communication.
• Rich Media Sharing: Share files, images, and videos effortlessly within conversations.
• Video Conferencing: Conduct face-to-face meetings directly within the platform.
• Channel Organization: Create public and private channels for efficient team collaboration.
• Omnichannel Communication: Integrate customer support channels like email, SMS, and social media.

Whether you're looking to improve internal team communication, streamline customer support, or create a community platform, Rocket.Chat offers the tools and flexibility to meet your unique needs. Experience the power of open-source communication and take control of your team's collaboration today.

Mattermost is an open-source collaboration platform built for organizations that require high levels of privacy, security and control over their communications. Some key features and benefits include:

• Flexible deployment options: Can be self-hosted on-premises, in private clouds, or air-gapped environments
• Advanced security and compliance: Built-in access controls, audit logging, and data retention policies
• Customizable and extensible: Open APIs and integrations to connect with existing tools and workflows
• Channels for team communication: Secure messaging, file sharing, voice/video calls
• Playbooks for process management: Checklist-based workflows to standardize repeatable processes
• AI-powered features: Ability to integrate AI capabilities while maintaining full data control
• Mobile and desktop apps: Access from any device with native mobile apps

Mattermost is designed for industries like defense, government, financial services, and critical infrastructure that have stringent requirements around data sovereignty and security. It provides a self-hosted alternative to cloud-based tools, giving organizations complete control over their collaboration environment.

The platform aims to improve team productivity and accelerate mission-critical work by providing a centralized hub for communication, process management, and integrations. With its focus on security and flexibility, Mattermost enables organizations to collaborate effectively even in highly regulated or air-gapped environments.

Element is a powerful, open-source communication platform that puts privacy and security at the forefront. Built on the decentralized Matrix protocol, Element offers a comprehensive suite of features for both personal and professional use.

Key benefits of Element include:

• End-to-end encryption: Ensure your messages, calls, and shared files remain private and secure.
• Decentralized architecture: Choose your own server or self-host for complete control over your data.
• Cross-platform compatibility: Seamlessly sync conversations across desktop, web, iOS, and Android devices.
• Rich collaboration tools: Enjoy group chats, voice and video calls, file sharing, and integrations with popular productivity apps.
• Interoperability: Connect with users on other Matrix-based platforms, fostering open communication.
• Customization options: Tailor the interface and features to meet your specific needs or brand requirements.
• Community-driven development: Benefit from continuous improvements and innovations from a global developer community.

Whether you're an individual seeking secure messaging or an organization looking for a flexible, scalable communication solution, Element provides the tools you need to stay connected while maintaining control over your data and privacy.

Fluxer is a comprehensive communication platform that prioritizes user privacy and community building. This free and open-source messaging app offers everything you need to connect with friends, organize groups, and build thriving communities.

Core Features:

• Full messaging suite with Markdown support, private DMs, group chats, and organized channels
• Voice and video calls with screen sharing, noise suppression, and multi-device support
• Advanced moderation tools including granular permissions, audit logs, and webhook support
• Powerful search with message history filtering and quick switcher functionality

Customization & Control:

• Upload custom emojis and stickers to personalize your experience
• Apply custom CSS themes and display options for a tailored interface
• Self-hosting capabilities - run your own instance with full control over your data
• Switch between multiple instances seamlessly

Built for Privacy: Made in Sweden with a focus on transparency, Fluxer is fully open source under AGPLv3 license. The platform supports responsible disclosure through their security bug bounty program and maintains active community involvement through their beta program.

Perfect for individuals seeking Discord alternatives, communities wanting data sovereignty, or organizations requiring secure, customizable communication solutions.

Stoat (formerly Revolt) is a modern chat application that puts you at the center of your communication experience. This privacy-first platform offers a refreshing alternative to mainstream messaging apps with its commitment to user control and data protection.

Key Features:

• Advanced text channels with image attachments, @mentions, and website linking
• Community building tools including fine-grained permissions and moderation features
• Bot integration for enhanced functionality and automation
• Complete customization - design your interface exactly how you want it
• Next-generation DMs and groups with simple friend request system

Privacy & Security:

• No ads or trackers - your conversations stay private
• GDPR compliant - developed in Europe with strict privacy standards
• Open-source - transparent code you can trust
• Secure and confidential communication protocols

Whether you're building a community, managing a team, or just chatting with friends, Stoat provides the tools you need while respecting your privacy. The platform combines modern chat features with old-school principles of user ownership and data protection.

Wire delivers military-grade security without sacrificing user experience. The platform features always-on end-to-end encryption for messages, files, and calls, while maintaining an intuitive interface for seamless team collaboration.

Key capabilities include:

• Instant messaging, file sharing, and video meetings with invisible security
• Flexible collaboration tools for internal teams and external partners
• Complete data sovereignty with on-premises deployment options
• Enterprise features like SSO, SCIM, and granular admin controls

Trusted by industry leaders including BMW, ExxonMobil, and government organizations worldwide, Wire ensures your sensitive communications remain private and compliant. The platform is particularly valuable for organizations requiring:

• Zero-knowledge encryption
• Regulatory compliance
• Digital sovereignty
• Scalable secure collaboration

Mezon is a comprehensive community platform designed for gamers and social enthusiasts who want to create their own digital hangout spaces. Whether you're looking to organize gaming sessions, chat with friends, or build a thriving community, Mezon provides all the tools you need.

The platform allows you to create fully customized spaces tailored to your group's interests and needs. You can set up dedicated channels for different games, topics, or activities, making it easy to keep conversations organized and engaging.

Key features include:

• Custom community spaces with personalized layouts and themes
• Multi-purpose chat channels for text, voice, and multimedia sharing
• Gaming-focused tools to coordinate gameplay and tournaments
• Global connectivity to meet and interact with people worldwide
• Flexible privacy settings to control who can join your communities

Perfect for gaming clans, hobby groups, study communities, or casual friend circles, Mezon adapts to any social dynamic. The platform makes it simple to invite friends, discover new communities, and maintain active engagement through intuitive design and robust communication features.

A community-driven communication platform that prioritizes transparency, flexibility, and user privacy. Built entirely by volunteers without corporate funding, this open-source solution offers a refreshing alternative to traditional chat platforms.

Key features include:

• Multi-window chat system - Chat across multiple channels and communities simultaneously with advanced window management
• Integrated economy system - Reward community members and create engaging experiences
• Customizable item system - Show achievements and enhance user immersion
• Blazor & WebAssembly technology - Superior performance without resource-heavy Electron framework
• Node-based backend - Optimized for large communities without sacrificing core features

Privacy and transparency are at the core of this platform. Your data will never be sold, and the entire codebase is open for public inspection. The community-driven development approach ensures features are built for real user needs rather than corporate interests.

Perfect for communities seeking a modern, fast, and ethical communication platform that puts users first.

SAMA is a powerful open source chat server designed for modern mobile and web applications. It offers enterprise-grade security with built-in end-to-end encryption and seamless scalability through out-of-the-box clustering support.

Key features include:

• Advanced messaging capabilities including private/group chats, typing indicators, read receipts, and file attachments
• Robust user management with authorization, profile editing, user search and blocking
• Multi-device support allowing users to stay connected across devices with flexible message delivery
• Real-time presence tracking to monitor online/offline status
• Push notification support for APNS/FCM/Web to reach offline users
• Built for scale with clustering support for handling large user bases

The platform comes with a modern frontend client, clustering-enabled backend, admin dashboard, and comprehensive API documentation - everything needed to build secure and scalable chat applications.