zulip

Virtual whiteboard for sketching hand-drawn like diagrams

Apache ECharts is a powerful, interactive charting and data visualization library for browser

? 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.

The communications platform that puts data protection first.

whiteboard SDK / infinite canvas SDK

A generative speech model for daily dialogue.

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

Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free.

Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.

?免费的 ChatGPT 镜像网站列表，持续更新。List of free ChatGPT mirror sites, continuously updated.