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Langflow
Visual builder for AI agents and RAG pipelines — LangChain-powered.
MIT-licensed alternative to Flowise with Python code nodes, multi-agent orchestration, and vector store integration. pip install or Docker.
LobeChat
Open-source AI chat — plugin ecosystem, multi-model, voice chat.
Apache-2.0 alternative to ChatGPT with GPT-4, Claude, Gemini, and Ollama support. Material Design UI, DALL-E/Flux image generation, and TTS/STT.
This category covers tools for building or interacting with AI systems visually — Langflow for building agent and RAG pipelines, and LobeChat for chatting with AI models through a polished interface. They solve different problems: one is a builder, the other is a chat client.
FAQ
What's the best open-source alternative to Flowise?
Langflow is the closest match — both are visual, LangChain-oriented builders for AI agents and RAG pipelines. See alternatives to Flowise for other options.
What's the best open-source alternative to ChatGPT?
LobeChat is a polished, self-hosted chat interface with multi-model support. See alternatives to ChatGPT for more options including offline-first tools.
What are the top open-source AI interaction tools?
Explore alternatives to Flowise and alternatives to ChatGPT above, or check the Local AI category for more chat interfaces.