Decision Workspace
boa_gc vs sdd vs boa_engine
Side-by-side comparison of Rust crates
62
boa_gc
growingv0.21.0
Garbage collector for the Boa JavaScript engine.
66
sdd
stablev4.7.5
Scalable lock-free delayed memory reclaimer
63
boa_engine
growingv0.21.0
Boa is a Javascript lexer, parser and compiler written in Rust. Currently, it has support for some of the language.
Core Metrics
| boa_gc | sdd | boa_engine | |
|---|---|---|---|
| Health Score | 62 | 66 | 63 |
| Total Downloads | 2.4M | 53.1M | 2.4M |
| 30d Downloads | 277.7K | 6.1M | 277.6K |
| Dependents | 220 | 164 | 418 |
| Releases | 12 | 62 | 11 |
| Last Updated | 157d ago | 12d ago | 157d ago |
| Age | 4y | 1y 11m | 4y |
Health Breakdown
boa_gc
Maintenance
10
Quality
16
Community
16
Popularity
8
Documentation
12
sdd
Maintenance
18
Quality
13
Community
12
Popularity
8
Documentation
15
boa_engine
Maintenance
12
Quality
13
Community
18
Popularity
8
Documentation
12
Technical Details
| boa_gc | sdd | boa_engine | |
|---|---|---|---|
| Version | 0.21.0 | 4.7.5 | 0.21.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | Unlicense OR MIT | Apache-2.0 | Unlicense OR MIT |
| Dependencies | 6 | 3 | 74 |
| Crate Size | 30KB | 53KB | 837KB |
| Features | 4 | 0 | 17 |
| Yanked % | 0.0% | 38.7% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | 1.88.0 | 1.85.0 | 1.88.0 |
| Owners | 2 (team) | 1 | 3 (team) |
Links
Quick Verdict
- •sdd leads with a health score of 66/100, but none of the options score above 80.
- •boa_engine is depended on by 418 crates — strongest ecosystem trust.
- •boa_gc, boa_engine are pre-1.0 — API may change.