Decision Workspace
boltffi vs swift-bridge-build vs swift-bridge-ir
Side-by-side comparison of Rust crates
61
boltffi
experimentalv0.25.0
High-performance FFI bindings generator for Rust. Up to 1000x faster than UniFFI, 450x faster than wasm-bindgen.
53
swift-bridge-build
growingv0.1.59
Parse Rust files for swift-bridge modules and generate the corresponding Swift and C code for them.
52
swift-bridge-ir
growingv0.1.59
Holds the data structures and logic for bridge module parsing and code generation.
Core Metrics
| boltffi | swift-bridge-build | swift-bridge-ir | |
|---|---|---|---|
| Health Score | 61 | 53 | 52 |
| Total Downloads | 12.3K | 1.8M | 1.8M |
| 30d Downloads | 6.4K | 81.2K | 79.4K |
| Dependents | 1 | 243 | 120 |
| Releases | 10 | 60 | 60 |
| Last Updated | 14d ago | 139d ago | 139d ago |
| Age | 3m | 4y 6m | 4y 6m |
Health Breakdown
boltffi
Maintenance
19
Quality
17
Community
7
Popularity
5
Documentation
13
swift-bridge-build
Maintenance
12
Quality
14
Community
10
Popularity
7
Documentation
10
swift-bridge-ir
Maintenance
12
Quality
14
Community
9
Popularity
7
Documentation
10
Technical Details
| boltffi | swift-bridge-build | swift-bridge-ir | |
|---|---|---|---|
| Version | 0.25.0 | 0.1.59 | 0.1.59 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | Apache-2.0/MIT | Apache-2.0/MIT |
| Dependencies | 3 | 4 | 3 |
| Crate Size | 9KB | 12KB | 133KB |
| Features | 5 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •boltffi leads with a health score of 61/100, but none of the options score above 80.
- •swift-bridge-build has the most downloads (1.8M), suggesting wider adoption.
- •swift-bridge-build is depended on by 243 crates — strongest ecosystem trust.