# Windmill

> Windmill is a free, open-source app you can self-host in the automation & workflows category. Fast workflow engine and internal tool builder that turns scripts into UIs and automations. It has 18,108 GitHub stars, is released under the AGPL-3.0 license and ships a Docker image. It is a self-hosted alternative to Zapier.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/windmill-labs/windmill |
| Website | https://windmill.dev/ |
| GitHub stars | 18,108 |
| Forks | 1,112 |
| Open issues | 575 |
| License | AGPL-3.0 |
| License type | Open source |
| Language | Rust |
| Docker image | Yes |
| Platforms | Docker |
| Categories | Automation & Workflows, Low-code & Backend |
| Commits, last 12 months | 4,452 |
| Last commit | Oct 6, 2026 |
| Latest release | v1.824.1 (Oct 5, 2026) |
| Created | May 5, 2022 |
| Maintenance | Actively maintained |
| Archived | No |

Topics: low-code, open-source, platform, python, typescript, postgresql, self-hostable

## Install

Windmill ships a Docker image; follow the README at https://github.com/windmill-labs/windmill for the image name and environment variables.

Need it installed for you? [appsgit installation help](https://appsgit.com/services/install): a fixed quote by email, single app installs from $79.

## Windmill replaces

- [Zapier alternatives](https://appsgit.com/alternatives/zapier): A no-code automation service that connects thousands of web apps with triggers and actions.

## Similar apps in Automation & Workflows

- [n8n](https://appsgit.com/apps/n8n): Free node based Workflow Automation Tool. Easily automate tasks across different services. (206,738 stars, Sustainable Use License, source-available, TypeScript, Docker)
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## Articles

- [The best open-source alternatives to n8n in 2026](https://appsgit.com/blog/n8n-alternatives-open-source): The best open-source n8n alternatives in 2026: Activepieces, Huginn, Node-RED, Windmill, Kestra and Automatisch, with honest licence notes and who each suits.
- [n8n vs Zapier vs Activepieces: open-source automation compared](https://appsgit.com/blog/n8n-vs-zapier-vs-activepieces): n8n vs Zapier vs Activepieces compared for 2026: licences, self-hosting, pricing per run, integrations, AI agents and MCP, with a clear pick for every team.

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