Windmill
Windmill is an open-source, self-hosted app in the Automation & Workflows category, licensed AGPL-3.0 and written mainly in Rust. It is a self-hosted alternative to Zapier and ships a Docker image. It has 18,269 GitHub stars and its last commit was on Oct 26, 2026 (data as of Oct 26, 2026).
GitHub stats
- GitHub stars
- 18,269
- Forks
- 1,127
- Open issues
- 578
- Commits, last 12 months
- 4,643
- Last commit
- Oct 26, 2026
- Latest release
- v1.849.0Oct 25, 2026
- Created
- May 5, 2022
- License
- AGPL-3.0Open source
Data as of from the GitHub API. Report an error
Project health
ActiveActive: last commit Oct 26, 2026, 4,643 commits in 12 months.
- Regular releases10 or more releases in 12 months
| Last commit | Oct 26, 2026 |
|---|---|
| Commits, last 12 months | 4,643 |
| Latest release | v1.849.0 (Oct 25, 2026) |
| Releases, last 12 months | 10 or more |
| Releases, all time | 1,572 |
| Open issues | 578 |
| Open pull requests | 286 |
| Good first issues | 0 |
| Contributing guide | Yes |
| Security policy | No |
| Created | May 5, 2022 |
Health as of , from the GitHub API. A label describes activity, not quality or security. How we label project health · Report a data error
About Windmill
Fast workflow engine and internal tool builder that turns scripts into UIs and automations.
Description written by appsgit. Source code: github.com/windmill-labs/windmill.
Topics
- open-source
- python
- typescript
- postgresql
- self-hostable
- ai-agents
- internal-tools
- orchestration
- rust
- self-hosted
Open-source alternative to
Windmill can replace these commercial products. Compare every option on each page.
Repository preview
From the blog
Articles about Windmill
Comparisons, rankings and guides on the appsgit blog that cover Windmill.
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Is Windmill free and open source?
Yes. Windmill is open-source software released under the AGPL-3.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run Windmill with Docker?
Yes. Windmill provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. The project README lists the image name and the environment variables to set.
What are the best alternatives to Windmill?
Popular self-hosted alternatives to Windmill include n8n, Huginn and Apache Airflow. Windmill itself is a self-hosted alternative to Zapier.
Is Windmill actively maintained?
The most recent commit to Windmill was on Oct 26, 2026 with 4,643 commits in the past twelve months. The latest release is v1.849.0, published Oct 25, 2026. It had 578 open issues on GitHub. appsgit's project-health label for it is "Active" as of Oct 26, 2026.