Decision Workspace
hl7-v2 vs hl7-mllp vs fhir-r4
Side-by-side comparison of Rust crates
44
hl7-v2
experimentalv0.0.1
Zero-dependency HL7 v2 message parser — bytes to typed AST, no transport, no runtime
48
hl7-mllp
experimentalv0.1.0
Transport-agnostic MLLP (Minimal Lower Layer Protocol) framing for HL7 v2 messages
45
fhir-r4
experimentalv0.0.1
FHIR R4 resource types and builders — focused, composable, serde-compatible
Core Metrics
| hl7-v2 | hl7-mllp | fhir-r4 | |
|---|---|---|---|
| Health Score | 44 | 48 | 45 |
| Total Downloads | 62 | 41 | 63 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 1 | 0 | 1 |
| Releases | 1 | 2 | 1 |
| Last Updated | 94d ago | 93d ago | 94d ago |
| Age | 3m | 3m | 3m |
Health Breakdown
hl7-v2
Maintenance
8
Quality
15
Community
7
Popularity
2
Documentation
12
hl7-mllp
Maintenance
12
Quality
16
Community
6
Popularity
2
Documentation
12
fhir-r4
Maintenance
8
Quality
16
Community
7
Popularity
2
Documentation
12
Technical Details
| hl7-v2 | hl7-mllp | fhir-r4 | |
|---|---|---|---|
| Version | 0.0.1 | 0.1.0 | 0.0.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | Apache-2.0 | Apache-2.0 | Apache-2.0 |
| Dependencies | 0 | 3 | 2 |
| Crate Size | 6KB | 20KB | 7KB |
| Features | 0 | 3 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | 1.75 | 1.94 | 1.75 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •hl7-mllp leads with a health score of 48/100, but none of the options score above 80.
- •fhir-r4 has the most downloads (63), suggesting wider adoption.