Decision Workspace
merman-core vs merman vs prax-schema
Side-by-side comparison of Rust crates
58
merman-core
experimentalv0.5.0
Mermaid parser + semantic model (headless; parity-focused).
59
merman
experimentalv0.5.0
Rust, headless Mermaid implementation (1:1 parity; pinned to mermaid@11.12.3).
60
prax-schema
experimentalv0.9.7
Schema parser and AST for the Prax ORM
Core Metrics
| merman-core | merman | prax-schema | |
|---|---|---|---|
| Health Score | 58 | 59 | 60 |
| Total Downloads | 2.7K | 1.8K | 1.2K |
| 30d Downloads | 1.4K | 0 | 0 |
| Dependents | 10 | 7 | 174 |
| Releases | 5 | 5 | 24 |
| Last Updated | 6d ago | 6d ago | 24d ago |
| Age | 3m | 3m | 5m |
Health Breakdown
merman-core
Maintenance
18
Quality
12
Community
9
Popularity
4
Documentation
15
merman
Maintenance
18
Quality
14
Community
8
Popularity
4
Documentation
15
prax-schema
Maintenance
17
Quality
12
Community
12
Popularity
4
Documentation
15
Technical Details
| merman-core | merman | prax-schema | |
|---|---|---|---|
| Version | 0.5.0 | 0.5.0 | 0.9.7 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 20 | 10 | 14 |
| Crate Size | 268KB | 50KB | 109KB |
| Features | 2 | 3 | 1 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | 1.87 | 1.87 | 1.89 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •prax-schema leads with a health score of 60/100, but none of the options score above 80.
- •merman-core has the most downloads (2.7K), suggesting wider adoption.
- •prax-schema is depended on by 174 crates — strongest ecosystem trust.