Decision Workspace
flatten_objects vs smallbitvec vs rpds
Side-by-side comparison of Rust crates
59
flatten_objects
growingv0.2.4
A container that stores numbered objects. Each object can be assigned with a unique ID.
74
smallbitvec
stablev2.6.1
A bit vector optimized for size and inline storage
72
rpds
stablev1.2.1
Persistent data structures with structural sharing
Core Metrics
| flatten_objects | smallbitvec | rpds | |
|---|---|---|---|
| Health Score | 59 | 74 | 72 |
| Total Downloads | 92.5K | 3.3M | 13.4M |
| 30d Downloads | 19.2K | 226.0K | 1.0M |
| Dependents | 30 | 167 | 1.1K |
| Releases | 6 | 21 | 21 |
| Last Updated | 329d ago | 19d ago | 10d ago |
| Age | 1y 10m | 8y 8m | 8y 6m |
Health Breakdown
flatten_objects
Maintenance
9
Quality
15
Community
14
Popularity
6
Documentation
15
smallbitvec
Maintenance
15
Quality
20
Community
16
Popularity
8
Documentation
15
rpds
Maintenance
16
Quality
20
Community
13
Popularity
8
Documentation
15
Technical Details
| flatten_objects | smallbitvec | rpds | |
|---|---|---|---|
| Version | 0.2.4 | 2.6.1 | 1.2.1 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | GPL-3.0-or-later OR Apache-2.0 OR MulanPSL-2.0 | MIT OR Apache-2.0 | MIT |
| Dependencies | 1 | 3 | 9 |
| Crate Size | 5KB | 16KB | 75KB |
| Features | 0 | 0 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | 1.85 | 1.56 | 1.85.0 |
| Owners | 2 (team) | 2 (team) | 1 |
Links
Quick Verdict
- •smallbitvec leads with a health score of 74/100, but none of the options score above 80.
- •rpds has the most downloads (13.4M), suggesting wider adoption.
- •rpds is depended on by 1.1K crates — strongest ecosystem trust.
- •flatten_objects is pre-1.0 — API may change.