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https://github.com/langflow-ai/langflow

Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
https://github.com/langflow-ai/langflow

agents chatgpt generative-ai large-language-models multiagent react-flow

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Langflow is a powerful tool for building and deploying AI-powered agents and workflows.

Awesome Lists containing this project

README 

          



![Langflow logo](./docs/static/img/langflow-logo-color-black-solid.svg)



[![Release Notes](https://img.shields.io/github/release/langflow-ai/langflow?style=flat-square)](https://github.com/langflow-ai/langflow/releases)

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> [!CAUTION]

> - Langflow versions 1.6.0 through 1.6.3 have a critical bug where `.env` files are not read, potentially causing security vulnerabilities. **DO NOT** upgrade to these versions if you use `.env` files for configuration. Instead, upgrade to 1.6.4, which includes a fix for this bug.

> - Windows users of Langflow Desktop should **not** use the in-app update feature to upgrade to Langflow version 1.6.0. For upgrade instructions, see [Windows Desktop update issue](https://docs.langflow.org/release-notes#windows-desktop-update-issue).

> - Users must update to Langflow >= 1.3 to protect against [CVE-2025-3248](https://nvd.nist.gov/vuln/detail/CVE-2025-3248)

> - Users must update to Langflow >= 1.5.1 to protect against [CVE-2025-57760](https://github.com/langflow-ai/langflow/security/advisories/GHSA-4gv9-mp8m-592r)

>

> For security information, see our [Security Policy](./SECURITY.md) and [Security Advisories](https://github.com/langflow-ai/langflow/security/advisories).



[Langflow](https://langflow.org) is a powerful tool for building and deploying AI-powered agents and workflows. It provides developers with both a visual authoring experience and built-in API and MCP servers that turn every workflow into a tool that can be integrated into applications built on any framework or stack. Langflow comes with batteries included and supports all major LLMs, vector databases and a growing library of AI tools.



## ✨ Highlight features



- **Visual builder interface** to quickly get started and iterate .

- **Source code access** lets you customize any component using Python.

- **Interactive playground** to immediately test and refine your flows with step-by-step control.

- **Multi-agent orchestration** with conversation management and retrieval.

- **Deploy as an API** or export as JSON for Python apps.

- **Deploy as an MCP server** and turn your flows into tools for MCP clients.

- **Observability** with LangSmith, LangFuse and other integrations.

- **Enterprise-ready** security and scalability.



## ⚡️ Quickstart



### Install locally (recommended)



Requires Python 3.10–3.13 and [uv](https://docs.astral.sh/uv/getting-started/installation/) (recommended package manager).



#### Install



```shell

$ uv pip install langflow -U

```



Installs the latest Langflow package.



#### Run



```shell

$ uv run langflow run

```



Starts the Langflow server at http://127.0.0.1:7860.



That's it! You're ready to build with Langflow 🎉



### Other install options



- [Docker](https://docs.langflow.org/deployment-docker)

- [Desktop app](https://docs.langflow.org/get-started-installation#install-and-run-langflow-desktop)



### Install from repo



If you're contributing or running from source, see [DEVELOPMENT.md](./DEVELOPMENT.md) for setup instructions.



## 📦 Deployment



Langflow is completely open source and you can deploy it to all major deployment clouds. To learn how to use Docker to deploy Langflow, see the [Docker deployment guide](https://docs.langflow.org/deployment-docker).



## ⭐ Stay up-to-date



Star Langflow on GitHub to be instantly notified of new releases.



![Star Langflow](https://github.com/user-attachments/assets/03168b17-a11d-4b2a-b0f7-c1cce69e5a2c)



## 👋 Contribute



We welcome contributions from developers of all levels. If you'd like to contribute, please check our [contributing guidelines](./CONTRIBUTING.md) and help make Langflow more accessible.



---



[![Star History Chart](https://api.star-history.com/svg?repos=langflow-ai/langflow&type=Timeline)](https://star-history.com/#langflow-ai/langflow&Date)



## ❤️ Contributors



[![langflow contributors](https://contrib.rocks/image?repo=langflow-ai/langflow)](https://github.com/langflow-ai/langflow/graphs/contributors)