Krayin vs Open QuarterMaster
A side-by-side comparison of two self-hosted crm & business apps options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Krayin
Free and open-source Laravel-based CRM
VS
Open QuarterMaster
Powerful inventory management system, designed to be flexible and
| Feature | Krayin | Open QuarterMaster |
|---|---|---|
| Category | CRM & Business Apps | CRM & Business Apps |
| License | MIT | GPL-3.0 |
| Language | PHP | Java |
| Setup difficulty | Medium | Medium |
| Min. RAM | 1,024 MB | 512 MB |
| Deployment | docker, bare-metal | docker |
| GitHub stars | ★ 23,644 | ★ 73 |
| First released | 2020 | 2026 |
| Replaces | Salesforce, HubSpot | — |
Why pick each one
Choose Open QuarterMaster if…
- Released under the GPL-3.0 license
- First-class Docker support for quick deployment
- Written in Java
- Lightweight — runs in 512 MB RAM
Frequently asked questions
Is Krayin or Open QuarterMaster better?
Neither is universally better. Krayin has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Krayin and Open QuarterMaster free and open-source?
Yes. Krayin is licensed under MIT and Open QuarterMaster under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Krayin and Open QuarterMaster with Docker?
Krayin: yes. Open QuarterMaster: yes.