The best-known decentralized microblogging platform: run your own instance and interoperate with the fediverse.
💬 Chat & Community
Instant messaging, video conferencing, forums and fediverse social networks
All 1142🎬 Media & Streaming 64🖼️ Photos & Images 20☁️ Cloud Drives & File Sync 32🔗 Sharing & Short Links 60📚 Documents & E-books 43📝 Notes & Wikis 45✅ Projects & Tasks 57🗓️ Office & Collaboration 64💬 Chat & Community 99📫 Email 27🌐 Websites & Blogs 45🛒 E-commerce & Finance 53📰 Feeds & Reading 23🏠 Smart Home & Surveillance 26🎮 Life & Entertainment 68🔐 Passwords & Identity 15🌍 Network & Proxy 55🧭 Dashboards & Start Pages 45📈 Monitoring & Analytics 76💾 Backup & Archiving 27🛠️ Development & Ops 104🤖 AI & Search 23📦 Other 71
A modern open-source forum platform with a complete feature set, ideal for building communities and knowledge bases.
A simple HTTP-based publish-subscribe notification service: a single curl command pushes to your phone.
An open-source video-conferencing system where meetings start without an account; self-host it as a Zoom replacement.
开源团队通信平台，支持频道、视频会议与全渠道客服，可自托管。
Notification infrastructure for developers.
按话题线程组织对话的团队聊天工具，适合异步协作与大型团队。
The most private and secure chat and applications platform - now with double ratchet E2E encryption.
统一的通知库：一套接口向数十种服务发送通知。
简洁、快速、可扩展的下一代论坛软件。
自托管的消息推送服务器，通过 REST API 向设备发送通知。
Knowledge-based community software. You can use it to quickly build your Q&A community for product technical support, customer support, user communication, and more.
Forum software built for the modern web.
去中心化的链接聚合与论坛，属于联邦宇宙（ActivityPub），类似开源版 Reddit。
Distributed social networking server.
Matrix 协议最主流的客户端，提供端到端加密的去中心化聊天与群组。
Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots.
功能丰富、界面精致的去中心化微博客平台，在日本与中文圈很受欢迎。
Language-agnostic real-time messaging (Websocket or SockJS) server.
Screego is a simple tool to quickly share your screen to one or multiple people via web browser.
Instant messaging and VoIP platform built for friends, groups, and communities (alternative to Discord).
Conversational app builder (alternative to Typeform and Landbot).
Supports real-time sharing of audio, video, slides (with whiteboard controls), chat, and the screen. Instructors can engage remote students with polling, emojis, and breakout rooms.
General-purpose, lightweight, minimalist WebRTC Server.