Windmill
startupMaker of Windmill, an open-source platform that turns scripts into apps and workflows.
Windmill Labs is a software company, founded in 2021 by Ruben Fiszel and headquartered in Paris, France, that builds Windmill, an open-source developer platform. Windmill turns scripts written in Python, TypeScript, Go, Bash, and SQL into production workflows, internal applications, and APIs. The company went through the Y Combinator accelerator and is positioned as an open-source alternative to tools such as Retool and Airflow.
Our Take
We point engineering teams at Windmill when they want to self-host and turn scripts into internal tools without stitching several products together. As an early-stage project we track its release pace per engagement. — Rafal Fila, ShadowGen
What Sets Windmill Apart
Windmill turns a plain script into a deployed workflow, app, and API at once, collapsing several categories of tooling (internal-app builders and workflow engines) into a single open-source, self-hostable platform.
Key Achievements
About Windmill
Windmill Labs develops Windmill, an open-source platform that converts ordinary scripts into production-grade workflows, user interfaces, and webhooks. A developer writes a script in a supported language, and Windmill handles execution, scheduling, dependency management, secrets, and the generation of an input form, removing much of the infrastructure work that turning a script into a usable internal tool normally requires.
The company was founded in 2021 by Ruben Fiszel, whose background includes distributed-systems work at Palantir, and went through the Y Combinator accelerator. Windmill is open-source and self-hostable, with a managed cloud offering and an enterprise tier. The project emphasises execution speed, presenting itself as a fast open-source workflow engine and an alternative to Retool for internal applications and to Airflow and Temporal for workflows. The company has raised seed-stage venture funding.