Decision Workspace
fast-cat vs dash-em vs moos
Side-by-side comparison of Rust crates
45
fast-cat
experimentalv0.1.1
An ergonomic macro for efficient string concatenation with a single memory allocation.
52
dash-em
experimentalv1.1.2
Enterprise-Grade Em-Dash Removal Library — SIMD-Accelerated String Processing
50
moos
experimentalv0.3.0
Memory-Optimized Objects and Strings (MOOS)
Core Metrics
| fast-cat | dash-em | moos | |
|---|---|---|---|
| Health Score | 45 | 52 | 50 |
| Total Downloads | 51.8K | 122 | 133 |
| 30d Downloads | 21.1K | 51 | 22 |
| Dependents | 19 | 0 | 0 |
| Releases | 2 | 5 | 3 |
| Last Updated | 272d ago | 18d ago | 94d ago |
| Age | 9m | 4m | 3m |
Health Breakdown
fast-cat
Maintenance
7
Quality
9
Community
10
Popularity
6
Documentation
13
dash-em
Maintenance
17
Quality
17
Community
6
Popularity
2
Documentation
10
moos
Maintenance
14
Quality
17
Community
3
Popularity
3
Documentation
13
Technical Details
| fast-cat | dash-em | moos | |
|---|---|---|---|
| Version | 0.1.1 | 1.1.2 | 0.3.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT | MIT |
| Dependencies | 2 | 1 | 3 |
| Crate Size | 10KB | 22KB | 16KB |
| Features | 1 | 0 | 6 |
| Yanked % | 50.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •dash-em leads with a health score of 52/100, but none of the options score above 80.
- •fast-cat has the most downloads (51.8K), suggesting wider adoption.
- •fast-cat, moos are pre-1.0 — API may change.