head to head · open source
Odoo vs witness
Odoo has 55,501 GitHub stars, 34,192 forks, 10,282 open issues and last shipped yesterday. witness has 615 stars, 87 forks, 75 open issues and last shipped yesterday. Odoo leads on adoption by 8,925% (55,501 vs 615 stars). Odoo is written in Python under a custom or non-standard licence; witness is written in Go under Apache-2.0. Odoo has attracted 62% as many forks as stars, witness 14%. 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 | witness | |
|---|---|---|
| GitHub stars | ★ 56K | ★ 615 |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 34K | ⑂ 87 |
| 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 witness if
- You want the witness feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and witness 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 witness
Witness Witness originated at TestifySec and was later donated to the CNCF in toto ecosystem. It is now maintained by the open community. DOCS • CONTRIBUTING • LICENSE bash What does Witness do? ✏️ Attests Witness is a dynamic CLI tool that integrates into pipelines and infrastructure to create an audit trail for your software's entire journey through the software development lifecycle (SDLC) using the in toto specification. 🧐 Verifies Witness also features its own policy engine with embedded support for OPA Rego, so you can ensure that your software was handled safely from source to deployment. What can you do…
read the full witness overview →
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Frequently asked questions
Is Odoo or witness more popular?
Odoo has 55,501 GitHub stars and witness has 615. Odoo has the larger community by that measure.
Are Odoo and witness free?
Both are open source. Odoo has no licence declared in this registry, and witness is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Odoo and witness?
Odoo is written in Python and witness in Go. 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 witness?
Choose Odoo if you want the larger community (55,501 stars) or its Custom / other licence terms. Choose witness if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.