Decision Workspace
flexon vs asmjson vs spanned_json_parser
Side-by-side comparison of Rust crates
56
flexon
experimentalv0.4.7
SIMD accelerated JSON parser
45
asmjson
experimentalv0.2.6
A fast JSON parser using AVX-512/AVX2/SWAR classifiers
44
spanned_json_parser
growingv0.2.0
A Json parser that gives you the line and column number for each value
Core Metrics
| flexon | asmjson | spanned_json_parser | |
|---|---|---|---|
| Health Score | 56 | 45 | 44 |
| Total Downloads | 5.5K | 321 | 22.5K |
| 30d Downloads | 522 | 0 | 0 |
| Dependents | 0 | 0 | 12 |
| Releases | 20 | 18 | 3 |
| Last Updated | 6d ago | 95d ago | 976d ago |
| Age | 9m | 4m | 2y 8m |
Health Breakdown
flexon
Maintenance
19
Quality
17
Community
6
Popularity
4
Documentation
10
asmjson
Maintenance
14
Quality
12
Community
6
Popularity
3
Documentation
10
spanned_json_parser
Maintenance
5
Quality
15
Community
9
Popularity
5
Documentation
10
Technical Details
| flexon | asmjson | spanned_json_parser | |
|---|---|---|---|
| Version | 0.4.7 | 0.2.6 | 0.2.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | MIT | MIT |
| Dependencies | 5 | 9 | 6 |
| Crate Size | 81KB | 111KB | 11KB |
| Features | 10 | 1 | 1 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •flexon leads with a health score of 56/100, but none of the options score above 80.
- •spanned_json_parser has the most downloads (22.5K), suggesting wider adoption.
- •⚠ spanned_json_parser has not been updated in over a year.