Decision Workspace
jscan vs picojson vs zjson
Side-by-side comparison of Rust crates
42
jscan
experimentalv0.1.0
High-performance zero-allocation JSON iterator and validator. Port of github.com/romshark/jscan/v2.
54
picojson
experimentalv0.2.2
A resource-constrained JSON parser for embedded systems.
46
zjson
growingv0.1.5
Parse JSON with zero allocation.
Core Metrics
| jscan | picojson | zjson | |
|---|---|---|---|
| Health Score | 42 | 54 | 46 |
| Total Downloads | 14 | 3.6K | 8.7K |
| 30d Downloads | 14 | 101 | 53 |
| Dependents | 0 | 0 | 0 |
| Releases | 1 | 9 | 6 |
| Last Updated | 22d ago | 69d ago | 702d ago |
| Age | 22d | 9m | 1y 11m |
Health Breakdown
jscan
Maintenance
12
Quality
13
Community
6
Popularity
1
Documentation
10
picojson
Maintenance
15
Quality
16
Community
6
Popularity
4
Documentation
13
zjson
Maintenance
7
Quality
18
Community
6
Popularity
5
Documentation
10
Technical Details
| jscan | picojson | zjson | |
|---|---|---|---|
| Version | 0.1.0 | 0.2.2 | 0.1.5 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 2 | 3 | 0 |
| Crate Size | 3.9MB | 110KB | 22KB |
| Features | 2 | 9 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •picojson leads with a health score of 54/100, but none of the options score above 80.
- •zjson has the most downloads (8.7K), suggesting wider adoption.
- •⚠ zjson has not been updated in over a year.