Decision Workspace
cassowary vs casuarius vs immi
Side-by-side comparison of Rust crates
50
cassowary
growingv0.3.0
A Rust implementation of the Cassowary linear constraint solving algorithm. The Cassowary algorithm is designed for naturally laying out user interfaces using linear constraints, like 'this button must line up with this text box'.
39
casuarius
growingv0.1.1
Another implementation of the Cassowary linear constraint solving algorithm.
54
immi
growingv1.0.4
Immediate mode user interface toolkit.
Core Metrics
| cassowary | casuarius | immi | |
|---|---|---|---|
| Health Score | 50 | 39 | 54 |
| Total Downloads | 25.6M | 3.5K | 52.7K |
| 30d Downloads | 2.6M | 10 | 532 |
| Dependents | 296 | 14 | 23 |
| Releases | 4 | 2 | 11 |
| Last Updated | 3117d ago | 1307d ago | 3159d ago |
| Age | 9y 11m | 3y 7m | 10y 4m |
Health Breakdown
cassowary
Maintenance
5
Quality
16
Community
10
Popularity
8
Documentation
11
casuarius
Maintenance
4
Quality
15
Community
6
Popularity
4
Documentation
10
immi
Maintenance
5
Quality
21
Community
11
Popularity
6
Documentation
11
Technical Details
| cassowary | casuarius | immi | |
|---|---|---|---|
| Version | 0.3.0 | 0.1.1 | 1.0.4 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT / Apache-2.0 | MIT / Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 0 | 2 | 0 |
| Crate Size | 23KB | 25KB | 21KB |
| Features | 0 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | — | 2021 | — |
| MSRV | — | — | — |
| Owners | 1 | 1 | 2 |
Links
Quick Verdict
- •immi leads with a health score of 54/100, but none of the options score above 80.
- •cassowary has the most downloads (25.6M), suggesting wider adoption.
- •cassowary is depended on by 296 crates — strongest ecosystem trust.
- •⚠ cassowary, casuarius, immi have not been updated in over a year.
- •cassowary, casuarius are pre-1.0 — API may change.