Windmill — independent third-party profile of a public API surface, by API Evangelist. Windmill is an open-source developer platform and workflow engine for turning scripts into webhooks, workflows, and internal apps. It supports TypeScript, Python, Go, PHP, Bash, C#, SQL, and Rust, and serves as an open-source alternative to Retool, Airflow, and T
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Updated
Sep 1, 2026