Decision Workspace
cor vs colog vs jlf
Side-by-side comparison of Rust crates
43
cor
experimentalv2026.3.1
Colorize JSON-structured log lines from stdin
60
colog
growingv1.4.0
The `colog` library is a simple formatter backend for the standard rust logging system (in the `log` crate).
44
jlf
growingv0.2.2
CLI for converting JSON logs to human-readable format
Core Metrics
| cor | colog | jlf | |
|---|---|---|---|
| Health Score | 43 | 60 | 44 |
| Total Downloads | 118 | 326.6K | 19.0K |
| 30d Downloads | 37 | 68.2K | 28 |
| Dependents | 0 | 396 | 0 |
| Releases | 7 | 8 | 17 |
| Last Updated | 13d ago | 196d ago | 388d ago |
| Age | 1m | 8y 11m | 2y 1m |
Health Breakdown
cor
Maintenance
13
Quality
10
Community
6
Popularity
2
Documentation
12
colog
Maintenance
10
Quality
20
Community
13
Popularity
7
Documentation
10
jlf
Maintenance
8
Quality
13
Community
5
Popularity
5
Documentation
13
Technical Details
| cor | colog | jlf | |
|---|---|---|---|
| Version | 2026.3.1 | 1.4.0 | 0.2.2 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | MIT | LGPL-3.0 | MIT OR Apache-2.0 |
| Dependencies | 15 | 3 | 12 |
| Crate Size | 1.8MB | 28KB | 44KB |
| Features | 1 | 0 | 0 |
| Yanked % | 14.3% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2021 |
| MSRV | 1.92 | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •colog leads with a health score of 60/100, but none of the options score above 80.
- •colog is depended on by 396 crates — strongest ecosystem trust.
- •⚠ jlf has not been updated in over a year.
- •jlf is pre-1.0 — API may change.