head to head · open source
filament vs Umbraco-CMS
filament has 32,397 GitHub stars, 4,237 forks, 26 open issues and last shipped yesterday. Umbraco-CMS has 5,280 stars, 2,947 forks, 525 open issues and last shipped yesterday. filament leads on adoption by 514% (32,397 vs 5,280 stars). filament is written in PHP under MIT; Umbraco-CMS is written in C# under MIT. filament has attracted 13% as many forks as stars, Umbraco-CMS 56%. filament was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (cms), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| filament | Umbraco-CMS | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 5.3K |
| License | MIT | MIT |
| Written in | PHP | C# |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 4.2K | ⑂ 2.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick filament if
- You weight community size — 32K stars and counting
- You want the MIT license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick Umbraco-CMS if
- You want the Umbraco-CMS feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and Umbraco-CMS fits your workflow better
About filament
Build apps & admin panels fast, for your bright ideas. With a solid Laravel foundation and a polished UI, you can focus on what makes your product unique. Filament gives you UI components that you won't outgrow — a cohesive set of well considered building blocks that adapt as your application grows in complexity. Tables — Browse and filter large datasets with powerful columns, actions, and bulk operations. Forms — Build complex, reactive forms using a set of reusable, state aware components. Infolists — Render read only record views with structured layouts and custom formatting. Notifications — Trigger in app…
read the full filament overview →
About Umbraco-CMS
Umbraco CMS Umbraco is a free and open source .NET content management system. Our mission is to help you deliver delightful digital experiences by making Umbraco friendly, simpler and social. Learn more at umbraco.com Looking to install Umbraco? You can get started using the following commands on Windows, Linux and MacOS (after installing the .NET Runtime and SDK): Documentation Our comprehensive documentation takes you from the fundamentals on how to start with Umbraco to deploying it to production. Some important documentation links to get you started: Installing Umbraco CMS Getting to know Umbraco Tutorials…
read the full Umbraco-CMS overview →
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Frequently asked questions
Is filament or Umbraco-CMS more popular?
filament has 32,397 GitHub stars and Umbraco-CMS has 5,280. filament has the larger community by that measure.
Are filament and Umbraco-CMS free?
Both are open source. filament is licensed under MIT and Umbraco-CMS under MIT. Neither carries a licence fee.
What is the difference between filament and Umbraco-CMS?
filament is written in PHP and Umbraco-CMS in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, filament or Umbraco-CMS?
Choose filament if you want the larger community (32,397 stars) or its MIT licence terms. Choose Umbraco-CMS if its feature set, stack or MIT licence fits better. Both are self-hostable.