head to head · open source
Odoo vs cmms
Odoo has 54,424 GitHub stars, 33,741 forks, 10,282 open issues and last shipped yesterday. cmms has 777 stars, 226 forks, 34 open issues and last shipped 2 days ago. Odoo leads on adoption by 6,904% (54,424 vs 777 stars). Odoo is written in Python under a custom or non-standard licence; cmms is written in TypeScript under AGPL-3.0. Odoo has attracted 62% as many forks as stars, cmms 29%. Odoo was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Odoo | cmms | |
|---|---|---|
| GitHub stars | ★ 54K | ★ 777 |
| License | Custom / other | AGPL-3.0 |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 34K | ⑂ 226 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Odoo if
- You weight community size — 54K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick cmms if
- You want the cmms feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and cmms fits your workflow better
About Odoo
Odoo is an open source suite of business applications built as modular web apps, forming a full featured ERP when combined. It lives in the Python based ecosystem and provides pre built modules for core business functions including CRM, accounting, inventory, e commerce, and HR, all sharing a unified data model and interface.
About cmms
Atlas CMMS is a self hosted computerized maintenance management system written in TypeScript and licensed under AGPL 3.0. It provides a web application and a mobile application for managing maintenance work, equipment, inventory, locations, and service requests. The project lives in the open source business software and ERP operations ecosystem, and it is deployed with Docker.
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Frequently asked questions
Is Odoo or cmms more popular?
Odoo has 54,424 GitHub stars and cmms has 777. Odoo has the larger community by that measure.
Are Odoo and cmms free?
Both are open source. Odoo has no licence declared in this registry, and cmms is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Odoo and cmms?
Odoo is written in Python and cmms in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Odoo or cmms?
Choose Odoo if you want the larger community (54,424 stars) or its Custom / other licence terms. Choose cmms if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.