Decision Workspace
flexstr vs arcstr vs hipstr
Side-by-side comparison of Rust crates
63
flexstr
growingv0.11.7
A flexible, simple to use, clone-efficient string type for Rust
64
arcstr
growingv1.2.0
A better reference-counted string type, with zero-cost (allocation-free) support for string literals, and reference counted substrings.
53
hipstr
growingv0.8.0
Yet another string for Rust: zero-cost borrow and slicing, inline representation for small strings, (atomic) reference counting
Core Metrics
| flexstr | arcstr | hipstr | |
|---|---|---|---|
| Health Score | 63 | 64 | 53 |
| Total Downloads | 1.1M | 10.4M | 506.1K |
| 30d Downloads | 30.1K | 1.1M | 142.2K |
| Dependents | 142 | 1.8K | 41 |
| Releases | 41 | 13 | 12 |
| Last Updated | 27d ago | 690d ago | 410d ago |
| Age | 4y 1m | 5y 7m | 2y 10m |
Health Breakdown
flexstr
Maintenance
17
Quality
14
Community
12
Popularity
7
Documentation
13
arcstr
Maintenance
4
Quality
22
Community
15
Popularity
8
Documentation
15
hipstr
Maintenance
8
Quality
16
Community
10
Popularity
7
Documentation
12
Technical Details
| flexstr | arcstr | hipstr | |
|---|---|---|---|
| Version | 0.11.7 | 1.2.0 | 0.8.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | Apache-2.0 OR MIT OR Zlib | MIT OR Apache-2.0 |
| Dependencies | 8 | 3 | 12 |
| Crate Size | 45KB | 32KB | 98KB |
| Features | 13 | 4 | 6 |
| Yanked % | 7.3% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | — | 1.57.0 | 1.84.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •arcstr leads with a health score of 64/100, but none of the options score above 80.
- •arcstr is depended on by 1.8K crates — strongest ecosystem trust.
- •⚠ arcstr, hipstr have not been updated in over a year.
- •flexstr, hipstr are pre-1.0 — API may change.