ODK Central vs OpnForm
| Tagline | Open Data Kit server for managing mobile data collection forms and submissions | Open-source form builder to create forms and surveys without code |
| Category | Forms & Surveys | Forms & Surveys |
| Replaces | SurveyMonkey, Google Forms | Typeform, Google Forms, Jotform |
| GitHub stars | 219 | 3.6k |
| Language | JavaScript | PHP |
| License | Apache-2.0 | AGPL-3.0 |
| Self-host difficulty | 3/5 Moderate | 3/5 Moderate |
| Deploy options | Docker Compose Manual | One-Click Docker Docker Compose Manual |
| Managed hosting | ||
| Last updated | 5 days ago | yesterday |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
ODK Central
- Primarily designed for mobile collection; web-based form filling is a secondary workflow
- No built-in charting or dashboards; OData export to external tools is recommended
- Encryption and advanced authentication add configuration complexity
OpnForm
- Some features (e.g. advanced branding removal, certain integrations) are reserved for the paid/cloud tier
- Fewer templates and question types than Jotform
- Analytics and reporting are lighter than commercial offerings
- Self-hosting requires a Laravel/PHP + database stack to maintain
Bottom line
Both are a similar lift to self-host; choose OpnForm for the larger community and ecosystem. OpnForm has seen more recent development. Open each guide below for deploy steps and the full feature gap.
ODK Central
Open Data Kit server for managing mobile data collection forms and submissions