Decision Workspace
vecx vs memvid-core vs safe_unaligned_simd
Side-by-side comparison of Rust crates
37
vecx
growingv0.6.0
AI vector store
62
memvid-core
growingv2.0.139
Core library for Memvid v2, a crash-safe, deterministic, single-file AI memory.
61
safe_unaligned_simd
experimentalv0.2.5
Safe SIMD wrappers for unaligned load and store operations.
Core Metrics
| vecx | memvid-core | safe_unaligned_simd | |
|---|---|---|---|
| Health Score | 37 | 62 | 61 |
| Total Downloads | 1.6K | 6.2K | 56.9K |
| 30d Downloads | 0 | 1.6K | 22.4K |
| Dependents | 0 | 63 | 173 |
| Releases | 2 | 31 | 9 |
| Last Updated | 511d ago | 73d ago | 86d ago |
| Age | 1y 4m | 6m | 10m |
Health Breakdown
vecx
Maintenance
6
Quality
7
Community
5
Popularity
4
Documentation
15
memvid-core
Maintenance
16
Quality
15
Community
11
Popularity
5
Documentation
15
safe_unaligned_simd
Maintenance
14
Quality
17
Community
12
Popularity
6
Documentation
12
Technical Details
| vecx | memvid-core | safe_unaligned_simd | |
|---|---|---|---|
| Version | 0.6.0 | 2.0.139 | 0.2.5 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 10 | 69 | 1 |
| Crate Size | 13KB | 3.1MB | 53KB |
| Features | 0 | 23 | 5 |
| Yanked % | 50.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.83.0 | 1.85.0 | 1.88 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •memvid-core leads with a health score of 62/100, but none of the options score above 80.
- •safe_unaligned_simd has the most downloads (56.9K), suggesting wider adoption.
- •safe_unaligned_simd is depended on by 173 crates — strongest ecosystem trust.
- •⚠ vecx has not been updated in over a year.
- •vecx, safe_unaligned_simd are pre-1.0 — API may change.