head to head · open source
Odoo vs marley
Odoo has 54,424 GitHub stars, 33,741 forks, 10,282 open issues and last shipped yesterday. marley has 531 stars, 459 forks, 74 open issues and last shipped yesterday. Odoo leads on adoption by 10,149% (54,424 vs 531 stars). Odoo is written in Python under a custom or non-standard licence; marley is written in Python under GPL-3.0. Odoo has attracted 62% as many forks as stars, marley 86%. Odoo was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (erp), 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
| Odoo | marley | |
|---|---|---|
| GitHub stars | ★ 54K | ★ 531 |
| License | Custom / other | GPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 34K | ⑂ 459 |
| 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 marley if
- You want the marley feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Python
- You evaluated both and marley 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 marley
Marley Health is an open source, GPL 3.0 licensed health information system (HIS) built on the Frappe framework for healthcare organisations — clinics, hospitals, and practitioners — that want electronic health records and hospital operations running on infrastructure they control.
read the full marley overview →
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Frequently asked questions
Is Odoo or marley more popular?
Odoo has 54,424 GitHub stars and marley has 531. Odoo has the larger community by that measure.
Are Odoo and marley free?
Both are open source. Odoo has no licence declared in this registry, and marley is licensed under GPL-3.0. Both are free to self-host.
What is the difference between Odoo and marley?
Odoo is written in Python and marley in Python. 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 marley?
Choose Odoo if you want the larger community (54,424 stars) or its Custom / other licence terms. Choose marley if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.