Windmill
Open SourceSelf-hostableTurn scripts into workflows and UIs.
4.513K starsAlternative to Zapier, Retool
Overview
Windmill is a developer platform that turns Python, TypeScript, Go, and Bash scripts into shareable workflows, APIs, and internal UIs. It blends automation, job scheduling, and app building in one fast, self-hostable engine.
Why pick Windmill over Zapier
- Own your data instead of trusting Zapier's servers
- No per-seat pricing — grow without ballooning costs
- Windmill is open source: audit it, fork it, extend it
- Self-host for full privacy and compliance control
Key features
- Run scripts in Python, TS, Go, and Bash
- Compose flows from scripts
- Auto-generated UIs and apps
- Cron scheduling and webhooks
- Blazing-fast Rust execution engine
Pros & cons
Screenshots
Installation
Run with Docker Compose
curl https://raw.githubusercontent.com/windmill-labs/windmill/main/docker-compose.yml -o docker-compose.yml && docker compose up -dFrequently asked questions
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