Decision Workspace
proj-sys vs proj vs proj4rs
Side-by-side comparison of Rust crates
55
proj-sys
growingv0.27.0
Rust bindings for PROJ v9.6.x
65
proj
growingv0.31.0
High-level Rust bindings for the latest stable version of PROJ
64
proj4rs
growingv0.1.10
Rust adaptation of Proj4
Core Metrics
| proj-sys | proj | proj4rs | |
|---|---|---|---|
| Health Score | 55 | 65 | 64 |
| Total Downloads | 563.6K | 554.1K | 308.2K |
| 30d Downloads | 26.5K | 20.1K | 54.5K |
| Dependents | 75 | 254 | 32 |
| Releases | 44 | 59 | 11 |
| Last Updated | 210d ago | 210d ago | 21d ago |
| Age | 8y | 10y 9m | 2y 9m |
Health Breakdown
proj-sys
Maintenance
10
Quality
13
Community
13
Popularity
7
Documentation
12
proj
Maintenance
10
Quality
15
Community
18
Popularity
7
Documentation
15
proj4rs
Maintenance
18
Quality
17
Community
9
Popularity
7
Documentation
13
Technical Details
| proj-sys | proj | proj4rs | |
|---|---|---|---|
| Version | 0.27.0 | 0.31.0 | 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 | 7 | 9 | 14 |
| Crate Size | 6.4MB | 43KB | 83KB |
| Features | 6 | 4 | 12 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2021 |
| MSRV | 1.85 | 1.85 | — |
| Owners | 2 (team) | 3 (team) | 1 |
Links
Quick Verdict
- •proj leads with a health score of 65/100, but none of the options score above 80.
- •proj-sys has the most downloads (563.6K), suggesting wider adoption.
- •proj is depended on by 254 crates — strongest ecosystem trust.