Builder infrastructure
Windmill
Open-source and self-hostable workflow engine
Windmill is an open-source, self-hostable workflow engine and developer platform for internal tools, workflows, AI agents, and automations. It supports code across many languages, integrations, and local development tooling.
Vendor's own claim
What Windmill is
Vendor's own claimWindmill is a developer platform for building, orchestrating, and monitoring internal software, with cloud and self-hosted deployment options.
What it can do
Vendor's own claim- Code-based workflows and automations
- Internal tools and applications
- AI agents
- Self-hosting and open source
- Integrations with 50+ services
Who it is for
Vendor's own claimEngineering and data teams that want a code-first workflow platform for internal tools, automations, and AI-agent workloads.
When to choose something else
Our readNontechnical teams wanting a no-code-only automation tool should look elsewhere: Windmill emphasizes code flexibility, local development, and worker configuration. Buyers needing a fixed simple per-seat price should also evaluate carefully because pricing includes worker and compute configuration.
Implementation considerations
Our readSetup assessment: 2h
A cloud workspace can begin with a quickstart, while self-hosting, worker sizing, integrations, and production workflows require technical configuration.
Prerequisites
- Windmill account or self-hosted deployment
- Developer access for code workflows
Published pricing
From official docs| Plan | Price | Included |
|---|---|---|
| Free and Open-source | from $ 0 /mo | See official pricing |