TL;DR - Windmill
- Windmill is an open-source developer platform for internal tools
- It runs scripts and workflows with a visual builder
- Free self-hosted option, Cloud available
Pricing: Free plan available
Best for: Growing teams
Score: 82/100
Pricing
Freemium
View pricing Windmill offers a free plan with paid upgrades.
About Windmill
Windmill turns scripts into workflows and UIs. Python and TypeScript scripts become apps—rapid internal tool development.
The script-to-app transformation is fast. The workflow building is visual. The platform is open source.
Teams wanting to turn scripts into tools explore Windmill for rapid app building.
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Windmill FAQ
Self-hosted is free and open source. Cloud from $10/month per user. AGPLv3 license.
Windmill is an open-source developer platform. Scripts, workflows, and UIs from code. Retool alternative.
Windmill is open source and code-first. Retool is more visual. Windmill for developers; Retool for non-devs.
TypeScript, Python, Go, Bash, SQL, and GraphQL. Multi-language workflows. Run any code.