Langflow

Name: Langflow
Brand: Langflow

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Build and deploy AI agents and RAG applications with a low-code visual interface.

AI Agents No-Code Workflow Automation

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Tracked since2026

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The Bottom Line

Entry price

Free, no paid tier

Biggest pro

Simplifies complex AI development with a visual interface

Biggest con

Reliance on pre-built components might limit highly unique custom solutions without Python

TL;DR - Langflow

Low-code visual builder for AI agents and RAG applications.
Supports major LLMs, vector databases, and AI tools.
Offers rapid iteration, deployment, and Python customization.

Pricing: Free forever

Best for: Individuals & startups

What is Langflow?

Editorial review

Langflow is a low-code AI builder designed to simplify the creation and deployment of AI agents and Retrieval Augmented Generation (RAG) applications. It provides a visual drag-and-drop interface that allows users to construct complex AI workflows without extensive coding. The platform supports integration with major Large Language Models (LLMs), vector databases, and a growing library of AI tools. This tool is ideal for AI developers, researchers, and teams looking to accelerate their AI workflow development, iterate rapidly, and deploy AI applications to production efficiently. It aims to reduce boilerplate code and complexity, enabling users to focus on the creative aspects of AI development. Langflow offers both an open-source version and a free, enterprise-grade cloud deployment option, ensuring scalability and security for AI applications.

Available on: Web

LCLouis CorneloupUpdated May 26, 2026 · how we evaluateSourcelangflow.org ↗

Pros & Cons

Pros

Simplifies complex AI development with a visual interface
Accelerates prototyping and deployment of AI applications
Extensive integrations with LLMs, vector databases, and other tools
Offers both low-code and Python customization for flexibility
Provides a free cloud deployment option for easy scaling

Cons

Reliance on pre-built components might limit highly unique custom solutions without Python
Learning curve for new users unfamiliar with visual programming or AI concepts
Specific limitations of the free cloud tier are not detailed

Preview

Key Features

Visual state flows with drag-and-drop interfaceReusable components for AI workflowsSupport for major LLMs (e.g., Llama-3, Mistral, OpenAI)Integration with various vector databases (e.g., Milvus, Qdrant, Pinecone)Access to hundreds of pre-built flows and componentsAbility to run single or fleets of AI agentsFlows deployable as APIsPython customization for advanced control

Pricing Plans

Free

Deploy yourself or sign up for a free cloud account
Use a free, enterprise-grade cloud to deploy your app

Calculate your cost View full pricing

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Langflow FAQ

What is Langflow?

Langflow is a low-code AI builder that allows users to visually construct, test, and deploy AI agents and Retrieval Augmented Generation (RAG) applications using a drag-and-drop interface. It integrates with various LLMs, vector databases, and AI tools.

How much does Langflow cost?

Langflow offers a free cloud account for deployment, and the core tool is also available as open-source, implying a freemium model with potential paid enterprise features or self-hosting options.

Is Langflow free?

Yes, Langflow offers a free cloud account for deploying applications and is also available as an open-source project, allowing users to get started without cost.

Who is Langflow for?

Langflow is for AI developers, engineers, and teams who want to quickly build, iterate on, and deploy AI agents and RAG applications, reducing development time and complexity.

Source: langflow.org

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