head to head · open source
Odoo vs Open Mercato
Odoo has 55,501 GitHub stars, 34,192 forks, 10,282 open issues and last shipped yesterday. Open Mercato has 1,896 stars, 480 forks, 1,119 open issues and last shipped yesterday. Odoo leads on adoption by 2,827% (55,501 vs 1,896 stars). Odoo is written in Python under a custom or non-standard licence; Open Mercato is written in TypeScript under MIT. Odoo has attracted 62% as many forks as stars, Open Mercato 25%. Open Mercato 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 | Open Mercato | |
|---|---|---|
| GitHub stars | ★ 56K | ★ 1.9K |
| License | Custom / other | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 34K | ⑂ 480 |
| 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 Open Mercato if
- You want the Open Mercato feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Open Mercato 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 Open Mercato
Open Mercato Open Mercato the AI Engineering Foundation Framework. AI code assistants generate code. They don't decide where it goes, how it should be layered, or whether it stays consistent across 30 or 50 engineers in the team. Open Mercato is the open source foundation framework that solves it: Architecture aware AI harness agents know where in the project to place code, not just how to write it, they are provided with autonomous skills for everything from adding data table, Design System coherent forms to implementing whole features with unit and integration tests, Spec first development specs ship with the…
read the full Open Mercato overview →
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Frequently asked questions
Is Odoo or Open Mercato more popular?
Odoo has 55,501 GitHub stars and Open Mercato has 1,896. Odoo has the larger community by that measure.
Are Odoo and Open Mercato free?
Both are open source. Odoo has no licence declared in this registry, and Open Mercato is licensed under MIT. Both are free to self-host.
What is the difference between Odoo and Open Mercato?
Odoo is written in Python and Open Mercato 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 Open Mercato?
Choose Odoo if you want the larger community (55,501 stars) or its Custom / other licence terms. Choose Open Mercato if its feature set, stack or MIT licence fits better. Both are self-hostable.