Decision Workspace
merman-core vs merman vs oak-ruby
Side-by-side comparison of Rust crates
54
merman-core
experimentalv0.4.0
Mermaid parser + semantic model (headless; parity-focused).
55
merman
experimentalv0.4.0
Rust, headless Mermaid implementation (1:1 parity; pinned to mermaid@11.12.3).
62
oak-ruby
experimentalv0.0.10
Ruby dynamic programming language parser with support for object-oriented programming and modern Ruby features.
Core Metrics
| merman-core | merman | oak-ruby | |
|---|---|---|---|
| Health Score | 54 | 55 | 62 |
| Total Downloads | 438 | 403 | 365 |
| 30d Downloads | 404 | 371 | 74 |
| Dependents | 8 | 5 | 5 |
| Releases | 4 | 4 | 10 |
| Last Updated | 15d ago | 15d ago | 4d ago |
| Age | 1m | 1m | 5m |
Health Breakdown
merman-core
Maintenance
15
Quality
12
Community
9
Popularity
3
Documentation
15
merman
Maintenance
15
Quality
14
Community
8
Popularity
3
Documentation
15
oak-ruby
Maintenance
19
Quality
15
Community
12
Popularity
3
Documentation
13
Technical Details
| merman-core | merman | oak-ruby | |
|---|---|---|---|
| Version | 0.4.0 | 0.4.0 | 0.0.10 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MPL-2.0 |
| Dependencies | 20 | 10 | 7 |
| Crate Size | 254KB | 48KB | 23KB |
| Features | 2 | 3 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | 1.87 | 1.87 | — |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •oak-ruby leads with a health score of 62/100, but none of the options score above 80.
- •merman-core has the most downloads (438), suggesting wider adoption.