Chance.js vs Synthea
| Chance.js | Synthea | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | Web | self-hosted |
| Free plan | Yes | Yes |
| Generation modes | synthetic | synthetic |
| API data generation | Yes | — |
| Relational data | — | Yes |
| Supported data formats | — | HL7 FHIR R4; HL7 FHIR STU3; HL7 FHIR DSTU2; Bulk FHIR NDJSON; C-CDA; CSV; CPCDS |
| Deployment | — | self-hosted |
Both are listed in Best Test Data Generation Tools. On Samsung Mobile US Press, Synthea scores higher on our published basis.