Decision Workspace
either vs rpds vs arrayvec
Side-by-side comparison of Rust crates
70
either
growingv1.15.0
The enum `Either` with variants `Left` and `Right` is a general purpose sum type with two cases.
66
rpds
growingv1.2.0
Persistent data structures with structural sharing
64
arrayvec
growingv0.7.6
A vector with fixed capacity, backed by an array (it can be stored on the stack too). Implements fixed capacity ArrayVec and ArrayString.
Core Metrics
| either | rpds | arrayvec | |
|---|---|---|---|
| Health Score | 70 | 66 | 64 |
| Total Downloads | 632.6M | 11.4M | 362.1M |
| 30d Downloads | 42.3M | 984.2K | 23.0M |
| Dependents | 22.6K | 849 | 16.0K |
| Releases | 32 | 20 | 55 |
| Last Updated | 387d ago | 138d ago | 587d ago |
| Age | 10y 6m | 8y 4m | 10y 10m |
Health Breakdown
either
Maintenance
7
Quality
22
Community
18
Popularity
8
Documentation
15
rpds
Maintenance
10
Quality
20
Community
13
Popularity
8
Documentation
15
arrayvec
Maintenance
6
Quality
16
Community
20
Popularity
8
Documentation
14
Technical Details
| either | rpds | arrayvec | |
|---|---|---|---|
| Version | 1.15.0 | 1.2.0 | 0.7.6 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT | MIT OR Apache-2.0 |
| Dependencies | 2 | 8 | 6 |
| Crate Size | 20KB | 73KB | 31KB |
| Features | 3 | 3 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2018 |
| MSRV | 1.63.0 | 1.85.0 | 1.51 |
| Owners | 3 | 1 | 2 (team) |
Links
Quick Verdict
- •either leads with a health score of 70/100, but none of the options score above 80.
- •either is depended on by 22.6K crates — strongest ecosystem trust.
- •⚠ either, arrayvec have not been updated in over a year.
- •arrayvec is pre-1.0 — API may change.