Decision Workspace
proj vs proj-sys vs proj4rs
Side-by-side comparison of Rust crates
63
proj
growingv0.31.0
High-level Rust bindings for the latest stable version of PROJ
53
proj-sys
growingv0.27.0
Rust bindings for PROJ v9.6.x
61
proj4rs
growingv0.1.10
Rust adaptation of Proj4
Core Metrics
| proj | proj-sys | proj4rs | |
|---|---|---|---|
| Health Score | 63 | 53 | 61 |
| Total Downloads | 660.3K | 706.2K | 719.2K |
| 30d Downloads | 25.0K | 32.3K | 159.9K |
| Dependents | 298 | 88 | 164 |
| Releases | 59 | 44 | 11 |
| Last Updated | 318d ago | 318d ago | 129d ago |
| Age | 11y | 8y 4m | 3y 1m |
Health Breakdown
proj
Maintenance
8
Quality
15
Community
18
Popularity
7
Documentation
15
proj-sys
Maintenance
8
Quality
13
Community
13
Popularity
7
Documentation
12
proj4rs
Maintenance
13
Quality
17
Community
11
Popularity
7
Documentation
13
Technical Details
| proj | proj-sys | proj4rs | |
|---|---|---|---|
| Version | 0.31.0 | 0.27.0 | 0.1.10 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 9 | 7 | 14 |
| Crate Size | 43KB | 6.4MB | 83KB |
| Features | 4 | 6 | 12 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2021 |
| MSRV | 1.85 | 1.85 | — |
| Owners | 3 (team) | 2 (team) | 1 |
Links
Quick Verdict
- •proj leads with a health score of 63/100, but none of the options score above 80.
- •proj4rs has the most downloads (719.2K), suggesting wider adoption.
- •proj is depended on by 298 crates — strongest ecosystem trust.