head to head · open source
Odoo vs ralph
Odoo has 55,501 GitHub stars, 34,192 forks, 10,282 open issues and last shipped yesterday. ralph has 2,531 stars, 593 forks, 124 open issues and last shipped yesterday. Odoo leads on adoption by 2,093% (55,501 vs 2,531 stars). Odoo is written in Python under a custom or non-standard licence; ralph is written in Python under Apache-2.0. Odoo has attracted 62% as many forks as stars, ralph 23%. 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 | ralph | |
|---|---|---|
| GitHub stars | ★ 56K | ★ 2.5K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 34K | ⑂ 593 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Odoo if
- You weight community size — 56K 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 ralph if
- You want the ralph feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and ralph fits your workflow better
About Odoo
Odoo Odoo is a suite of web based open source business apps. The main Odoo Apps include an Open Source CRM, Website Builder, eCommerce, Warehouse Management, Project Management, Billing & Accounting, Point of Sale, Human Resources, Marketing, Manufacturing, ... Odoo Apps can be used as stand alone applications, but they also integrate seamlessly so you get a full featured Open Source ERP when you install several Apps. Getting started with Odoo For a standard installation please follow the Setup instructions from the documentation. To learn the software, we recommend the Odoo eLearning, or Scale up, the business…
About ralph
Ralph Update 2025/02 As Allegro, we continue to publish Ralph's source code and will maintain its development under a "Sources only" model, without guarantees. We believe this approach will be beneficial, allowing everyone to use and build upon the software. Our current goal is to modernize the software and ensure its long term maintainability, and we're investing into it in 2025. However, we are not operating under a contribution based model. While we welcome discussions, we do not guarantee responses to issues or support for pull requests. If you require commercial support, please visit We sincerely appreciate…
read the full ralph overview →
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Frequently asked questions
Is Odoo or ralph more popular?
Odoo has 55,501 GitHub stars and ralph has 2,531. Odoo has the larger community by that measure.
Are Odoo and ralph free?
Both are open source. Odoo has no licence declared in this registry, and ralph is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Odoo and ralph?
Odoo is written in Python and ralph 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 ralph?
Choose Odoo if you want the larger community (55,501 stars) or its Custom / other licence terms. Choose ralph if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.