Decision Workspace
prettify-js vs boa_engine vs boa_gc
Side-by-side comparison of Rust crates
38
prettify-js
growingv0.1.0
A fast, robust but imperfect token-based JS code prettifier, written in Rust, that outputs JS source maps
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.
62
boa_gc
growingv0.21.0
Garbage collector for the Boa JavaScript engine.
Core Metrics
| prettify-js | boa_engine | boa_gc | |
|---|---|---|---|
| Health Score | 38 | 63 | 62 |
| Total Downloads | 12.5K | 2.4M | 2.4M |
| 30d Downloads | 516 | 267.5K | 267.7K |
| Dependents | 1 | 418 | 220 |
| Releases | 1 | 11 | 12 |
| Last Updated | 2079d ago | 157d ago | 157d ago |
| Age | 5y 8m | 4y | 4y |
Health Breakdown
prettify-js
Maintenance
1
Quality
14
Community
6
Popularity
5
Documentation
12
boa_engine
Maintenance
12
Quality
13
Community
18
Popularity
8
Documentation
12
boa_gc
Maintenance
10
Quality
16
Community
16
Popularity
8
Documentation
12
Technical Details
| prettify-js | boa_engine | boa_gc | |
|---|---|---|---|
| Version | 0.1.0 | 0.21.0 | 0.21.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | BSD-2-Clause | Unlicense OR MIT | Unlicense OR MIT |
| Dependencies | 4 | 74 | 6 |
| Crate Size | 8KB | 837KB | 30KB |
| Features | 0 | 17 | 4 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | 2024 | 2024 |
| MSRV | — | 1.88.0 | 1.88.0 |
| Owners | 1 | 3 (team) | 2 (team) |
Links
Quick Verdict
- •boa_engine leads with a health score of 63/100, but none of the options score above 80.
- •boa_gc has the most downloads (2.4M), suggesting wider adoption.
- •boa_engine is depended on by 418 crates — strongest ecosystem trust.
- •⚠ prettify-js has not been updated in over a year.