OpenProject vs ONLYOFFICE
Both OpenProject and ONLYOFFICE are European-built, GDPR-compliant solutions in the team collaboration space. This comparison breaks down their features, pricing, compliance posture, and data residency so you can make an informed choice for your team.
Quick Overview
OpenProject
EU- Headquarters
- Berlin, DE
- Pricing
- Free
- Open Source
- Yes
ONLYOFFICE
EU- Headquarters
- Riga, LV
- Pricing
- Free
- Open Source
- Yes
Key Differences
- OpenProject offers a free tier, while oNLYOFFICE offers a free tier. The different pricing models mean you should evaluate which approach better fits your usage pattern.
- Data residency differs: OpenProject hosts data in Germany, EU, while ONLYOFFICE hosts in Latvia, EU. If your organisation requires data to stay in a specific EU country, this distinction matters for compliance.
- ONLYOFFICE was founded in 2009, giving it a 3-year head start over OpenProject (founded 2012). More time in market often means a larger user community and more mature integrations, though newer entrants may offer more modern architectures.
- Each product has unique strengths: OpenProject offers Gantt charts and work packages and Agile boards (Scrum and Kanban), while ONLYOFFICE provides Document editor and Spreadsheet editor. Your choice depends on which capabilities matter most for your workflow.
Feature Comparison
| Feature | OpenProject | ONLYOFFICE |
|---|---|---|
| Name | OpenProject | ONLYOFFICE |
| Pricing | Free | Free |
| Free Tier | ||
| GDPR | ||
| ISO 27001 | ||
| Open Source | ||
| Headquarters | Berlin, DE | Riga, LV |
| Data Centers | DE, EU | LV, EU |
| Gantt charts and work packages | ||
| Agile boards (Scrum and Kanban) | ||
| Time and cost tracking | ||
| Resource management | ||
| Document management | ||
| Built-in wiki | ||
| Meeting management | ||
| BIM support | ||
| REST API | ||
| Self-hosting option | ||
| Document editor | ||
| Spreadsheet editor | ||
| Presentation editor | ||
| Form creator | ||
| PDF editor | ||
| Real-time collaboration | ||
| Nextcloud integration | ||
| E2E encryption |
Pricing Comparison
OpenProject
Freefree / enterprise
ONLYOFFICE
Freefreemium
Compliance Comparison
OpenProject
GDPRDPA
ONLYOFFICE
GDPRDPA
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OpenProject vs ONLYOFFICE — FAQ
What is the main difference between OpenProject and ONLYOFFICE?
Both OpenProject and ONLYOFFICE are European team collaboration solutions with full GDPR compliance. The key differences lie in their approach: OpenProject uses free / enterprise pricing while ONLYOFFICE uses freemium. OpenProject is headquartered in Berlin, Germany, while ONLYOFFICE is based in Riga, Latvia. Your choice should depend on your specific requirements for features, pricing, and data residency.
Which is more affordable, OpenProject or ONLYOFFICE?
Both OpenProject and ONLYOFFICE offer free tiers, so you can try either without cost. Pricing models differ (free / enterprise vs. freemium), so compare based on your usage pattern rather than just the starting price.
Are both OpenProject and ONLYOFFICE GDPR compliant?
Yes. Both OpenProject and ONLYOFFICE are European companies that store data within the EU/EEA and offer Data Processing Agreements. Neither is subject to the US CLOUD Act or FISA surveillance. For GDPR purposes, either option eliminates the legal risks associated with using US-based services.