windmill

Open-source code-first platform for AI workflows and app automation.

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About windmill

Windmill is an innovative, open-source platform revolutionizing how teams build workflows, applications, and AI agents. Designed for developers and business users alike, it merges the flexibility of code-first development with the power of AI automation, fostering collaboration between technical engineers and business teams. At its core lies a high-performance self-hostable orchestrator that benchmarks faster than leading platforms such as Airflow and Prefect, ensuring reliable and efficient process automation.

Unlike proprietary solutions, Windmill's open architecture provides unmatched transparency and extensibility, empowering organizations to tailor workflows and AI tools to their exact operational requirements. Its integration capabilities enable crafting sophisticated AI agents that can handle complex tasks, improving productivity and decision-making across various business functions.

With continuous community contributions and a robust ecosystem, Windmill stands as a cost-effective, scalable alternative for enterprises and developers looking to automate workflows and develop custom apps enriched with AI capabilities.

Use Cases

Automate customer onboarding workflows by integrating data validation, approvals, and notifications within a single AI-powered pipeline.
Develop custom internal admin dashboards that connect multiple data sources and APIs without sacrificing code control and security.
Deploy AI agents that monitor system logs and alert engineering teams automatically upon detecting anomalies or critical issues.
Create a self-hosted automation platform for processing and analyzing sales data daily, triggering downstream reporting and notifications.
Build intelligent scheduling apps that dynamically adjust tasks based on resource availability and user input using AI-driven decision logic.
Enable business users to prototype and test automation flows with minimal developer intervention while ensuring engineering oversight and control.

Key Features

Self-hostable, lightning-fast orchestrator technology.
Code-first workflow and app development experience.
Seamless AI agent integration for automated intelligence.
Open-source with active community and customizable features.
Alternative to Lovable, Retool, and n8n with advanced control.

Pricing

Windmill is offered as a free and open-source platform with no licensing fees. Users self-host the platform, with no official paid plans currently available. The project encourages community contributions and provides extensive documentation and support through GitHub. Enterprises can leverage Windmill’s flexibility and speed at no cost, while investing in their own infrastructure and development resources as needed.

Pros & Cons

Pros

+ Completely free and open-source, eliminating licensing costs.
+ High-performance self-hosted orchestrator supports complex workflows.
+ Code-first approach offers granular control tailored for developers.
+ Strong AI agent integration enables sophisticated automation.
+ Transparent development with active community support.

Cons

- Requires technical expertise to set up and maintain self-hosted infrastructure.
- Lacks a managed cloud service option for non-technical users.
- Smaller ecosystem compared to established proprietary competitors.
- User interface may be less polished and friendly for non-developers.

Frequently Asked Questions

Is Windmill suitable for non-developers?

Windmill is primarily designed for developers comfortable with code-first platforms. However, its collaborative features allow business teams to participate, though some technical knowledge is beneficial.

How does Windmill compare to Retool?

Windmill is an open-source alternative focusing on workflows and AI agents with self-hosting capabilities, while Retool offers a hosted low-code platform mainly for internal tools with a user-friendly interface.

Can Windmill integrate AI agents into workflows?

Yes, Windmill natively supports integrating AI agents into workflows to automate complex tasks and enhance operational intelligence.

Is there a cloud-hosted version of Windmill?

Currently, Windmill is self-hosted and does not offer an official cloud-hosted service, providing full control over your infrastructure.

What programming languages does Windmill support?

Windmill is a code-first platform, and while the orchestrator is implemented in Go, it supports workflows written in various programming languages through extensible APIs.