Decision Workspace
im vs imbl vs im-rc
Side-by-side comparison of Rust crates
55
im
growingv15.1.0
Immutable collection datatypes
62
imbl
stablev7.0.0
Immutable collection datatypes
52
im-rc
growingv15.1.0
Immutable collection datatypes (the fast but not thread safe version)
Core Metrics
| im | imbl | im-rc | |
|---|---|---|---|
| Health Score | 55 | 62 | 52 |
| Total Downloads | 23.9M | 1.7M | 11.5M |
| 30d Downloads | 1.0M | 192.0K | 781.4K |
| Dependents | 3.4K | 673 | 523 |
| Releases | 36 | 13 | 16 |
| Last Updated | 1428d ago | 61d ago | 1428d ago |
| Age | 8y 11m | 4y 7m | 7y 7m |
Health Breakdown
im
Maintenance
6
Quality
13
Community
14
Popularity
8
Documentation
14
imbl
Maintenance
13
Quality
15
Community
13
Popularity
7
Documentation
14
im-rc
Maintenance
4
Quality
14
Community
12
Popularity
8
Documentation
14
Technical Details
| im | imbl | im-rc | |
|---|---|---|---|
| Version | 15.1.0 | 7.0.0 | 15.1.0 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✓ Yes |
| License | MPL-2.0+ | MPL-2.0+ | MPL-2.0+ |
| Dependencies | 20 | 25 | 20 |
| Crate Size | 117KB | 139KB | 194KB |
| Features | 1 | 4 | 2 |
| Yanked % | 11.1% | 7.7% | 18.8% |
| Edition | 2018 | 2018 | 2018 |
| MSRV | 1.46.0 | 1.85 | 1.46.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •imbl leads with a health score of 62/100, but none of the options score above 80.
- •im has the most downloads (23.9M), suggesting wider adoption.
- •im is depended on by 3.4K crates — strongest ecosystem trust.
- •⚠ im, im-rc have not been updated in over a year.