head to head · open source
Odoo vs witness
Odoo has 54,424 GitHub stars, 33,741 forks, 10,282 open issues and last shipped yesterday. witness has 546 stars, 82 forks, 75 open issues and last shipped 2 days ago. Odoo leads on adoption by 9,868% (54,424 vs 546 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 15%. 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 | ★ 54K | ★ 546 |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 34K | ⑂ 82 |
| 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 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 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 witness
Witness is an Apache 2.0 Go command line framework from the CNCF in toto ecosystem that creates and verifies signed attestations about how software artifacts were built, and it is aimed at platform, release, and security engineers who must prove artifact provenance across a software development lifecycle.
read the full witness overview →
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Frequently asked questions
Is Odoo or witness more popular?
Odoo has 54,424 GitHub stars and witness has 546. 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 (54,424 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.