Windmill
Open-source workflow engine for building internal tools, data pipelines, and AI agents at scale.
About Windmill
Windmill is an open-source workflow engine and developer platform for building endpoints, workflows, UIs, and AI agents at scale. It supports Python, TypeScript, Go, Bash, SQL, and more, with AI-powered code generation and is 13x faster than Apache Airflow.
Key Features
💰 Pricing
Free self-hosted (AGPLv3). Cloud plans start at $10/month for teams. Enterprise licensing available.
Self-hosted, unlimited users and flows
Cloud hosted, collaboration features
SSO, audit logs, priority support
Frequently Asked Questions
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📊 Comparison vs Alternatives
| Feature | ||||
|---|---|---|---|---|
| Pricing | Free | Freemium | Freemium | Freemium |
| Rating | ⭐ 4.4 | ⭐ 4.8 | ⭐ 4.8 | ⭐ 4.6 |
| Free Tier | ✅ | ✅ | ✅ | ✅ |
| Popularity | 45% | 100% | 94% | 92% |
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