Decision Workspace
arrform vs picojson vs fchashmap
Side-by-side comparison of Rust crates
40
arrform
growingv0.1.1
String formatting without memory allocator
54
picojson
experimentalv0.2.2
A resource-constrained JSON parser for embedded systems.
32
fchashmap
growingv0.1.3
A fixed capacity no_std hashmap
Core Metrics
| arrform | picojson | fchashmap | |
|---|---|---|---|
| Health Score | 40 | 54 | 32 |
| Total Downloads | 16.2K | 3.6K | 5.4K |
| 30d Downloads | 1.6K | 101 | 77 |
| Dependents | 0 | 0 | 1 |
| Releases | 2 | 9 | 3 |
| Last Updated | 1572d ago | 69d ago | 1776d ago |
| Age | 4y 3m | 9m | 4y 10m |
Health Breakdown
arrform
Maintenance
3
Quality
16
Community
6
Popularity
5
Documentation
10
picojson
Maintenance
15
Quality
16
Community
6
Popularity
4
Documentation
13
fchashmap
Maintenance
4
Quality
8
Community
7
Popularity
4
Documentation
9
Technical Details
| arrform | picojson | fchashmap | |
|---|---|---|---|
| Version | 0.1.1 | 0.2.2 | 0.1.3 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 0 | 3 | 5 |
| Crate Size | 8KB | 110KB | 13KB |
| Features | 0 | 9 | 0 |
| Yanked % | 0.0% | 0.0% | 66.7% |
| Edition | 2021 | 2021 | 2018 |
| 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.
- •arrform has the most downloads (16.2K), suggesting wider adoption.
- •⚠ arrform, fchashmap have not been updated in over a year.