linkwarden

Virtual whiteboard for sketching hand-drawn like diagrams

? Light and Fast AI Assistant. Support: Web | iOS | MacOS | Android | Linux | Windows

The open source Firebase alternative. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

? Lobe Chat - an open-source, modern-design AI chat framework. Supports Multi AI Providers( OpenAI / Claude 3 / Gemini / Ollama / DeepSeek / Qwen), Knowledge Base (file upload / knowledge management / RAG ), Multi-Modals (Plugins/Artifacts) and Thinking. One-click FREE deployment of your private ChatGPT/ Claude / DeepSeek application.

Build like a team of hundreds_

The communications platform that puts data protection first.

An open-source & self-hostable Heroku / Netlify / Vercel alternative.

whiteboard SDK / infinite canvas SDK

OpenAssistant is a chat-based assistant that understands tasks, can interact with third-party systems, and retrieve information dynamically to do so.

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..