Langflow
Open-source visual builder for AI agents and RAG.
Verified live · 7/11/2026
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What is Langflow?
An open-source, low-code tool for visually building LLM agents and retrieval workflows on top of LangChain, deployable as APIs.
Pros
- Open source
- Visual and flexible
- API export
Cons
- Technical setup
- Breaking changes between versions
Pricing
From $0 · Open source
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