Decision Workspace
formally vs smtkit vs formally-smt-macros
Side-by-side comparison of Rust crates
44
formally
growingv0.2025.121
the open-source formal methods toolchain
47
smtkit
experimentalv0.1.1
Facade crate for SMT constraint IR + SMT-LIB backends
43
formally-smt-macros
experimentalv0.2025.121
the open-source formal methods toolchain - SMT abstraction layer - proc macros
Core Metrics
| formally | smtkit | formally-smt-macros | |
|---|---|---|---|
| Health Score | 44 | 47 | 43 |
| Total Downloads | 817 | 62 | 233 |
| 30d Downloads | 25 | 17 | 74 |
| Dependents | 1 | 0 | 2 |
| Releases | 3 | 2 | 2 |
| Last Updated | 97d ago | 19d ago | 97d ago |
| Age | 1y | 1m | 3m |
Health Breakdown
formally
Maintenance
12
Quality
16
Community
5
Popularity
3
Documentation
8
smtkit
Maintenance
13
Quality
16
Community
3
Popularity
2
Documentation
13
formally-smt-macros
Maintenance
12
Quality
15
Community
5
Popularity
3
Documentation
8
Technical Details
| formally | smtkit | formally-smt-macros | |
|---|---|---|---|
| Version | 0.2025.121 | 0.1.1 | 0.2025.121 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | non-standard | MIT OR Apache-2.0 | non-standard |
| Dependencies | 5 | 5 | 5 |
| Crate Size | 12KB | 24KB | 10KB |
| Features | 3 | 6 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •smtkit leads with a health score of 47/100, but none of the options score above 80.
- •formally has the most downloads (817), suggesting wider adoption.