Langflow
Visual builder for AI agents and RAG apps, deployable as APIs or MCP servers.
- Stars
- 155.7K
- Forks
- 10.2K
- Open issues
- 1.2K
- Last commit
- 2026-10-15
Live from the GitHub API · updated 2026-10-15
What is Langflow?
Langflow is a Python-based visual IDE for building agents and RAG workflows from components. Every flow becomes an API endpoint or MCP server, and components can be edited in Python.
Key features
- Visual flow editor with Python components
- Flows as APIs and MCP servers
- Playground for testing
- Many model and vector store integrations
System requirements
- Platforms
- Windows · macOS · Linux · Docker
- Python
- 3.10–3.13
How to install Langflow
Summarized from the project’s README. Projects change quickly — check the GitHub page for the latest instructions.
pip / uv
- 1Install and run (http://127.0.0.1:7860).
uv pip install langflow uv run langflow run
Docker
- 1Run the image.
docker run -p 7860:7860 langflowai/langflow:latest
Strengths
- Python-native and extensible
- MIT license
Limitations
- Heavy dependency footprint
Langflow alternatives compared
| Software | Stars | License | Platforms | VRAM |
|---|---|---|---|---|
| Langflow Visual builder for AI agents and RAG apps, deployable as APIs or MCP servers. | 155.7K | MIT | — | |
| Flowise Drag-and-drop UI to build LLM flows and agents. | 55.5K | Apache-2.0 | — | |
| Dify Visual platform for building LLM apps, RAG pipelines and agents. | 158.5K | Dify Open Source License (Apache-2.0 based) | — | |
| n8n Workflow automation with native AI agents and 400+ integrations. | 207.4K | Sustainable Use License (fair-code) | — | |
| Open WebUI Self-hosted ChatGPT-style interface for Ollama and OpenAI-compatible APIs. | 155.7K | Open WebUI License (BSD-3-Clause based) | — | |
| LibreChat Open-source ChatGPT clone supporting every major AI provider. | 45.7K | MIT | — |
FAQ
Is Langflow free?
Yes — Langflow is open-source software released under the MIT license. Check the license (and any model weight licenses) before commercial use.
Does Langflow run on Windows, Mac and Linux?
Langflow supports: Windows, macOS, Linux, Docker.
How do I install Langflow?
1. Install and run (http://127.0.0.1:7860).
What are the best Langflow alternatives?
Popular alternatives include Flowise, Dify, n8n, Open WebUI. See the comparison table on this page.