Decision Workspace
fixed_str vs qstr vs bytestring
Side-by-side comparison of Rust crates
45
fixed_str
growingv0.9.1
Fixed-size, null-padded UTF-8 string type with const-safe construction and binary serialization support.
52
qstr
experimentalv0.2.0
Cache-efficient, stack-allocated string types
68
bytestring
growingv1.5.0
A UTF-8 encoded read-only string using `Bytes` as storage
Core Metrics
| fixed_str | qstr | bytestring | |
|---|---|---|---|
| Health Score | 45 | 52 | 68 |
| Total Downloads | 1.5K | 160 | 61.0M |
| 30d Downloads | 139 | 7 | 3.7M |
| Dependents | 0 | 0 | 1.1K |
| Releases | 2 | 5 | 13 |
| Last Updated | 367d ago | 116d ago | 193d ago |
| Age | 1y | 4m | 6y 3m |
Health Breakdown
fixed_str
Maintenance
6
Quality
17
Community
6
Popularity
4
Documentation
12
qstr
Maintenance
15
Quality
16
Community
6
Popularity
3
Documentation
12
bytestring
Maintenance
9
Quality
20
Community
19
Popularity
8
Documentation
12
Technical Details
| fixed_str | qstr | bytestring | |
|---|---|---|---|
| Version | 0.9.1 | 0.2.0 | 1.5.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT OR Apache-2.0 | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 5 | 2 | 5 |
| Crate Size | 27KB | 14KB | 11KB |
| Features | 6 | 3 | 1 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | 1.60 | 1.87 | 1.75 |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •bytestring leads with a health score of 68/100, but none of the options score above 80.
- •bytestring is depended on by 1.1K crates — strongest ecosystem trust.
- •⚠ fixed_str has not been updated in over a year.
- •fixed_str, qstr are pre-1.0 — API may change.