Decision Workspace
refraction vs optics vs proptest
Side-by-side comparison of Rust crates
37
refraction
growingv0.1.2
A general-purpose lens library for Rust.
36
optics
experimentalv0.3.0
A no_std-compatible optics library providing composable lenses, prisms, isomorphisms, and fallible isomorphisms.
81
proptest
stablev1.11.0
Hypothesis-like property-based testing and shrinking.
Core Metrics
| refraction | optics | proptest | |
|---|---|---|---|
| Health Score | 37 | 36 | 81 |
| Total Downloads | 5.4K | 2.4K | 107.0M |
| 30d Downloads | 5 | 13 | 9.2M |
| Dependents | 0 | 0 | 55.5K |
| Releases | 3 | 5 | 48 |
| Last Updated | 3387d ago | 295d ago | 3d ago |
| Age | 9y 3m | 10m | 8y 9m |
Health Breakdown
refraction
Maintenance
3
Quality
16
Community
3
Popularity
4
Documentation
11
optics
Maintenance
8
Quality
8
Community
6
Popularity
4
Documentation
10
proptest
Maintenance
18
Quality
21
Community
19
Popularity
8
Documentation
15
Technical Details
| refraction | optics | proptest | |
|---|---|---|---|
| Version | 0.1.2 | 0.3.0 | 1.11.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 1 | 4 | 15 |
| Crate Size | 14KB | 35KB | 208KB |
| Features | 1 | 0 | 14 |
| Yanked % | 0.0% | 20.0% | 0.0% |
| Edition | — | 2024 | 2021 |
| MSRV | — | — | 1.85 |
| Owners | 1 | 1 | 3 (team) |
Links
Quick Verdict
- •proptest has the highest health score (81/100) — a strong overall choice.
- •proptest is depended on by 55.5K crates — strongest ecosystem trust.
- •⚠ refraction has not been updated in over a year.
- •refraction, optics are pre-1.0 — API may change.