Decision Workspace
encode_unicode vs simdutf8 vs utf8_iter
Side-by-side comparison of Rust crates
59
encode_unicode
growingv1.0.0
UTF-8 and UTF-16 character types, iterators and related methods for char, u8 and u16.
58
simdutf8
growingv0.1.5
SIMD-accelerated UTF-8 validation.
58
utf8_iter
growingv1.0.4
Iterator by char over potentially-invalid UTF-8 in &[u8]
Core Metrics
| encode_unicode | simdutf8 | utf8_iter | |
|---|---|---|---|
| Health Score | 59 | 58 | 58 |
| Total Downloads | 120.4M | 107.6M | 236.0M |
| 30d Downloads | 9.7M | 10.8M | 31.1M |
| Dependents | 207 | 2.5K | 141 |
| Releases | 13 | 9 | 5 |
| Last Updated | 1328d ago | 551d ago | 847d ago |
| Age | 9y 11m | 4y 11m | 3y 11m |
Health Breakdown
encode_unicode
Maintenance
4
Quality
22
Community
12
Popularity
8
Documentation
13
simdutf8
Maintenance
4
Quality
19
Community
15
Popularity
8
Documentation
12
utf8_iter
Maintenance
4
Quality
21
Community
12
Popularity
8
Documentation
13
Technical Details
| encode_unicode | simdutf8 | utf8_iter | |
|---|---|---|---|
| Version | 1.0.0 | 0.1.5 | 1.0.4 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✓ Yes |
| License | Apache-2.0 OR MIT | MIT OR Apache-2.0 | Apache-2.0 OR MIT |
| Dependencies | 3 | 0 | 0 |
| Crate Size | 57KB | 28KB | 10KB |
| Features | 2 | 6 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2018 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •encode_unicode leads with a health score of 59/100, but none of the options score above 80.
- •utf8_iter has the most downloads (236.0M), suggesting wider adoption.
- •simdutf8 is depended on by 2.5K crates — strongest ecosystem trust.
- •⚠ encode_unicode, simdutf8, utf8_iter have not been updated in over a year.
- •simdutf8 is pre-1.0 — API may change.