AI Tools Pick랭플로우 (Langflow)
Open-source visual builder for AI apps and agents
What is 랭플로우 (Langflow)?
Langflow is an open-source low-code tool built on LangChain that lets you connect AI model, prompt, and data blocks visually to build RAG (answers grounded in your documents) or AI agents. It's free to download, but connecting model APIs takes a bit of technical know-how, making it ideal for developers and builders prototyping quickly.
How to start in 5 minutes
- Try the free cloud tier at langflow.org, or self-host it
- In a new flow, drag and connect input, model, and data blocks
- Add your model API key (e.g. OpenAI) to connect
- Test in the playground, then deploy as an API
Pricing
| Plan | Price | What you get |
|---|---|---|
| Open Source | Free |
|
Free when self-hosted (open source). Managed cloud paid pricing needs official confirmation; DataStax hosting was shut down in 2026 while the OSS project continues. · Exchange rate applied: 1 USD ≈ 1490 KRW. Prices can change — check the official site.
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