Windmill
Windmill is a fast, open-source workflow engine and developer platform. It's an alternative to the likes of Retool, Superblocks, n8n, Airflow, Prefect, Kestra and Temporal, designed to build comprehensive internal tools (endpoints, workflows, UIs). Built for teams to create and collaborate on internal software with full code flexibility and control over infrastructure.
26/40 applicable signals pass. Open the Capabilities tab for the full signal breakdown, or Issues for the highest-impact gaps.
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Frequently asked about Windmill
How Windmill compares
Windmill scores 64 out of 100, 5.8 points above the 58.2 average across the 406 tools we have scored.
Where Windmill fails alongside almost everyone, which is the industry gap rather than a mark against this product:
- OpenAPI / spec quality, where only 13% of scored tools do this (50 of 392).
- Response examples provided, where only 13% of scored tools do this (51 of 392).
- Errors and status codes documented, where only 13% of scored tools do this (52 of 392).
Population figures are read live from the scored registry. We sell nothing listed here and take no payment for a score. See the full dataset.
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