Cronicle vs Windmill
A side-by-side comparison of two self-hosted automation & workflows options — licensing, setup difficulty, resource needs, and what each one replaces.
Cronicle
Distributed task scheduler with a web UI
VS
Windmill
Developer platform for scripts, flows and apps
| Feature | Cronicle | Windmill |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 90 · Excellent | 95 · Excellent |
| Category | Automation & Workflows | Automation & Workflows |
| License | MIT | AGPL-3.0 |
| Language | JavaScript | Rust |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 1,024 MB |
| Deployment | docker, bare-metal | docker, kubernetes |
| GitHub stars | ★ 5,844 | ★ 18,022 |
| First released | 2015 | 2022 |
| Replaces | Zapier | Zapier, Retool |
What are Cronicle and Windmill?
Cronicle
Cronicle is a multi-server task scheduler and cron replacement with a web UI, real-time stats, and job chaining. It targets administrators coordinating scheduled jobs across machines. It is deployed via Docker or Node.js.
- Web UI for cron jobs
- Distributed multi-server scheduling
- Real-time job logs
- Job chaining and plugins
Windmill
Windmill is a developer platform that turns scripts into workflows, APIs, and internal apps with scheduling and approvals. It targets engineers automating internal tooling. It is deployed via Docker with PostgreSQL.
- Scripts in Python, TypeScript and more
- Auto-generated UIs for scripts
- Flows with branching and retries
- Fast Rust execution engine
Cronicle vs Windmill: key differences
Cronicle is written in JavaScript, while Windmill is built with Rust. Licensing differs — MIT for Cronicle versus AGPL-3.0 for Windmill. Cronicle is the lighter option, starting around 256 MB of RAM against 1,024 MB for Windmill. Cronicle is the more established project (first released 2015), while Windmill arrived in 2022. Windmill has the considerably larger community, at 18,022 GitHub stars versus 5,844.
Why pick each one
Choose Cronicle if…
- Great cron replacement
- Multi-server support
- Clear job visibility
Watch out for
- Not an app-integration tool
- Smaller community
Choose Windmill if…
- Great for developer automation
- Fast and scalable
- Code-first approach
Watch out for
- More technical than no-code tools
- Requires Postgres
Frequently asked questions
Is Cronicle or Windmill better?
Neither is universally better. Windmill has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Cronicle and Windmill free and open-source?
Yes. Cronicle is licensed under MIT and Windmill under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Cronicle and Windmill with Docker?
Cronicle: yes. Windmill: yes.
Which is lighter on resources, Cronicle or Windmill?
Cronicle has the smaller minimum footprint at 256 MB of RAM, compared to about 1,024 MB for Windmill. Real-world usage depends on library size, user count, and enabled features.