Odoo vs OpenProject: Complete Comparison (2026)
An in-depth comparison of Odoo and OpenProject to help you choose the right tool for your business.
Last updated: November 2026
Odoo
7.2/10
Odoo is an open-source business suite whose CRM app handles leads, pipelines, calling, and reporting for small and mid-sized companies, with ERP modules available alongside it.
OpenProject
6.7/10
Open source project management software for classic, agile and hybrid teams, available self-hosted for free or as an EU-hosted paid cloud.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 7.2/10 | 6.7/10 |
| Analytics | 7/10 | 6/10 |
| Cost | 8/10 | 8/10 |
| Customization | 9/10 | 8/10 |
| Ease of Use | 5/10 | 5/10 |
| Integration | 8/10 | 5/10 |
| Scalability | 7/10 | 7/10 |
| Security | 7/10 | 9/10 |
| Support | 5/10 | 6/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | €31/user/mo Standard | €6/user/mo Basic |
| Estimated cost for 10 users | Free One App Free | Free Community |
| Features | ||
| App integrations | Not listed | |
| Collaboration tools | Not listed | |
| Dashboards | Not listed | |
| Docs | Not listed | |
| File sharing | Not listed | |
| Gantt charts | Not listed | |
| Kanban boards | Not listed | |
| Knowledge base | Not listed | |
| Reporting | Not listed | |
| Task lists | Not listed | |
| Task management | Not listed | |
| Time tracking | Not listed | |
| Timeline view | Not listed | |
| More features | ||
| Marketing Automation | Not listed | |
| Built-in Calling | Not listed | |
| Collaboration | Not listed | |
| Customer Support Management | Not listed | |
| Lead Management | Not listed | |
| Integrations | Not listed | |
| Sales Automation | Not listed | |
| Opportunity Management | Not listed | |
| Contact Management | Not listed | |
| Reporting & Analytics | Not listed | |
| Mobile Access | Not listed | |
Odoo vs OpenProject cost by team size
Odoo and OpenProject cost the same at every team size we checked.
| Team size | Odoo | OpenProject |
|---|---|---|
| 1 user | FreeOne App Free | FreeCommunity |
| 5 users | FreeOne App Free | FreeCommunity |
| 10 users | FreeOne App Free | FreeCommunity |
| 25 users | FreeOne App Free | FreeCommunity |
| 50 users | FreeOne App Free | FreeCommunity |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose Odoo
- Higher Integration score (8/10 vs 5/10)
- Higher Analytics score (7/10 vs 6/10)
- Better fit for small business (8/10 vs 5/10)
- Better fit for startups (7/10 vs 4/10)
Why choose OpenProject
- Higher Security score (9/10 vs 7/10)
- Higher Support score (6/10 vs 5/10)
- Better fit for enterprise (8/10 vs 5/10)
Pros & Cons
Odoo
Pros
- The free plan gives unlimited users on a single app, so a team can run the CRM at no license cost.
- CRM data flows natively into Odoo's Sales, Inventory, Invoicing, and Email Marketing apps, so quotes and stock checks happen without third-party connectors.
- Lead tools go beyond the basics, with predictive scoring, quota-based assignment, deduplication, and enrichment.
- It is open source and highly customizable through Studio, the API, or self-hosting.
Cons
- Reviewers often describe the interface and workflows as complex for new users.
- Setup usually needs internal staff or a paid implementation partner.
- Some users report slow performance with large datasets.
- Opinions on support and documentation quality are mixed, and paid support is email-only on weekdays.
OpenProject
Pros
- The free self-hosted Community edition is GPLv3 open source and shares one codebase with the paid editions.
- It hosts cloud data in the EU, encrypts it with AES-256 at rest, and offers a signable GDPR data processing agreement.
- It supports classic Gantt planning and agile boards and backlogs in the same tool.
- Time and cost tracking with budget reports is built in.
- Long contract terms carry large discounts, for example fifteen months free on a five-year term.
Cons
- Paid plans require at least 25 users, and Premium requires 100.
- Several Reddit users report that self-hosted installation is hard, and some find the tool too elaborate for simple needs.
- Slack, Toggl and Mattermost connections are unsupported community plugins.
- Reviewers say the interface is less polished than tools like Asana, and that resource and workload management is weak.
- Many features, including SSO and portfolio management, require paid Enterprise tiers.
Not sold on either?
Frequently Asked Questions
Odoo scores higher on our Project Management criteria: 7.2/10 against 6.7/10 for OpenProject. The largest gap is in Integration: 8/10 for Odoo and 5/10 for OpenProject.
Both are free for 10 users.
Yes, both Odoo and OpenProject have a free plan.
OpenProject is the better fit for enterprise: we rate it 8/10 for them, against 5/10 for Odoo.
