Langflow
Visual builder for LangChain.
Open sourceVerified FreeAPIOpen source
100 · Fresh2026-07-09
Live preview of https://www.langflow.org
TL;DR
Langflow is an open-source visual IDE for RAG and agent flows; free.
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FAQ
Is Langflow free?
Langflow has a machine-verified free tier (no card required).
Does Langflow have an API?
Yes, Langflow offers an API.
What are alternatives to Langflow?
Alternatives include Speakeasy, Softr, Continue.