Langflow

Langflow is a low-code AI builder for creating and deploying agentic and RAG applications.

Langflow is a low-code AI builder designed for creating and deploying agentic and retrieval-augmented generation applications. It allows developers to code in Python and integrate any large language model or vector database. The platform features a visual drag-and-drop interface that simplifies the process of building complex AI workflows and Model Context Protocol servers. Users can run flows as APIs, move applications from notebooks to production, and collaborate on projects. It supports open-source usage as well as cloud deployment options.

Langflow at a glance

Best for: Software engineer, Founder, Product manager
Runs on: Web, self-hosted, open source, API
Pricing: Free cloud account available; enterprise-grade cloud options offered.
Released: February 2023
Category: AI agent tool
Website: langflow.org

Key features

Visual drag-and-drop interface
Python code integration
Model Context Protocol server support
Flow as an API execution
Support for major LLMs and vector databases
Open-source and cloud deployment options

Use it for

Building agentic AI applications
Developing retrieval-augmented generation apps
Deploying AI workflows to production
Creating Model Context Protocol servers

Companions

Tools that articles about Langflow recommend using with it, each with its job.

Ollama — Fully self-hosted inference paired with Qdrant.
LangSmith — Step-by-step traces and evals that show what an agent actually did
Pinecone — Managed retrieval for the fastest path to production.
Qdrant — Self-hosted vectors when cost or data residency matter.
Langfuse — Self-hostable alternative to LangSmith.
n8n — Self-hostable automation with code allowed in any step

Alternatives to Langflow

Flowise — Modular building blocks and visual tools to build and scale agentic systems fast.
LangChain — Compose exactly the agent your use case needs from model, tools, prompt, and middleware.
Langroid — Simplifies multi-agent orchestration and app development with intuitive abstractions.
MLflow — Complete observability and evaluation for production AI apps.
LangBot — Choose between free public beta cloud and dedicated production environments.
Alook — Connects existing local coding agents to team communication channels.
LangGraph — Fine-grained control over long-running, stateful agent workflows
AI-Flow — Combine multiple AI models in one workflow and share them as simple apps.
Dify — Open-source visual builder for agents and RAG apps
DeerFlow — Executes long tasks using sandboxes, memories, tools, and subagents.
AG-UI — Standardizes agent-user interactions and generative UI for applications.
Agentloop — Provides a clean agent loop with provider-agnostic LLM access, hooks, and safety budgets.

All Langflow alternatives