Kirby vs Winter CMS
A side-by-side comparison of two self-hosted content management systems options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Kirby | Winter CMS |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 84 · Excellent | 84 · Excellent |
| Category | Content Management Systems | Content Management Systems |
| License | Proprietary | MIT |
| Language | PHP | PHP |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 512 MB |
| Deployment | docker, bare-metal, source | docker, bare-metal |
| GitHub stars | ★ 1,531 | ★ 1,520 |
| First released | 2012 | 2021 |
| Replaces | WordPress, Squarespace | WordPress |
What are Kirby and Winter CMS?
Kirby
Kirby is a flexible file-based content management system that stores content in plain text files and gives developers full control over markup. It is popular for portfolios and custom-designed websites.
- File-based content storage
- Flexible panel for editors
- No database required
- Developer-friendly templating
Winter CMS
Winter CMS is a free, open-source content management system based on the Laravel framework, created as a community-driven fork of October CMS. It offers a clean backend, a plugin marketplace, and developer-friendly tooling.
- Laravel foundation
- Plugin marketplace
- Clean admin backend
- Developer tooling
Kirby vs Winter CMS: key differences
Both projects are written in PHP. Licensing differs — Proprietary for Kirby versus MIT for Winter CMS. Kirby is the lighter option, starting around 256 MB of RAM against 512 MB for Winter CMS. Kirby is the more established project (first released 2012), while Winter CMS arrived in 2021.
Why pick each one
Choose Kirby if…
- Easy backups and version control
- Highly customizable
Watch out for
- Commercial license required for production
- Free only for personal use
Choose Winter CMS if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Active community (1.5k GitHub stars)
- Written in PHP
Watch out for
- Requires PHP knowledge
- Smaller plugin catalog
Frequently asked questions
Is Kirby or Winter CMS better?
Neither is universally better. Kirby has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Kirby and Winter CMS free and open-source?
Yes. Kirby is licensed under Proprietary and Winter CMS under MIT. Both can be self-hosted at no software cost.
Can I run Kirby and Winter CMS with Docker?
Kirby: yes. Winter CMS: yes.
Which is lighter on resources, Kirby or Winter CMS?
Kirby has the smaller minimum footprint at 256 MB of RAM, compared to about 512 MB for Winter CMS. Real-world usage depends on library size, user count, and enabled features.