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Overview
Windmill is an open-source platform for building internal tools, scripts, workflows, and UIs. Write scripts in TypeScript, Python, Go, or Bash, chain them into flows, and create apps — all self-hostable.
Strengths
- Open source with self-hosting option
- Supports TypeScript, Python, Go, and Bash
- Built-in app builder for internal tools
- Fast execution with Go-based runtime
Weaknesses
- Requires developer knowledge
- Newer product with smaller community
- Self-hosting needs infrastructure management
- Less polished than commercial alternatives
Quick info
- Category
- Automation
- Starting price
- Free
- Free tier
- Fully free
- Open source
- Yes
- Best for
- Any size
- Founded
- 2022
Last updated 2026-04-12
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