Decision Workspace
ffi_helpers vs extern-c vs rs4j
Side-by-side comparison of Rust crates
52
ffi_helpers
growingv0.3.0
A crate to help make working with FFI easier.
53
extern-c
growingv0.1.0
Convert a zero-sized closure into an `extern "C" fn(…)` pointer
40
rs4j
growingv0.10.2
A small, automatic, efficient, and easy-to-use Rust to Java bridge.
Core Metrics
| ffi_helpers | extern-c | rs4j | |
|---|---|---|---|
| Health Score | 52 | 53 | 40 |
| Total Downloads | 17.6M | 2.8M | 18.2K |
| 30d Downloads | 35.6K | 76.0K | 0 |
| Dependents | 81 | 257 | 0 |
| Releases | 3 | 2 | 17 |
| Last Updated | 1722d ago | 1040d ago | 650d ago |
| Age | 8y 2m | 2y 10m | 2y 5m |
Health Breakdown
ffi_helpers
Maintenance
3
Quality
15
Community
16
Popularity
8
Documentation
10
extern-c
Maintenance
4
Quality
18
Community
10
Popularity
8
Documentation
13
rs4j
Maintenance
7
Quality
15
Community
3
Popularity
5
Documentation
10
Technical Details
| ffi_helpers | extern-c | rs4j | |
|---|---|---|---|
| Version | 0.3.0 | 0.1.0 | 0.10.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | Zlib OR MIT OR Apache-2.0 | MIT |
| Dependencies | 3 | 0 | 9 |
| Crate Size | 15KB | 10KB | 30KB |
| Features | 0 | 4 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 2 (team) | 1 | 1 |
Links
Quick Verdict
- •extern-c leads with a health score of 53/100, but none of the options score above 80.
- •ffi_helpers has the most downloads (17.6M), suggesting wider adoption.
- •extern-c is depended on by 257 crates — strongest ecosystem trust.
- •⚠ ffi_helpers, extern-c, rs4j have not been updated in over a year.