Decision Workspace
utoipa vs fastapi vs utoipa-gen
Side-by-side comparison of Rust crates
65
utoipa
growingv5.4.0
Compile time generated OpenAPI documentation for Rust
45
fastapi
growingv0.1.1
Compile time generated OpenAPI documentation for Rust
56
utoipa-gen
growingv5.4.0
Code generation implementation for utoipa
Core Metrics
| utoipa | fastapi | utoipa-gen | |
|---|---|---|---|
| Health Score | 65 | 45 | 56 |
| Total Downloads | 22.6M | 1.8K | 22.6M |
| 30d Downloads | 2.9M | 6 | 2.9M |
| Dependents | 10.1K | 0 | 80 |
| Releases | 59 | 2 | 58 |
| Last Updated | 284d ago | 479d ago | 284d ago |
| Age | 4y 2m | 1y 3m | 4y 2m |
Health Breakdown
utoipa
Maintenance
9
Quality
22
Community
14
Popularity
8
Documentation
12
fastapi
Maintenance
6
Quality
18
Community
5
Popularity
4
Documentation
12
utoipa-gen
Maintenance
9
Quality
19
Community
8
Popularity
8
Documentation
12
Technical Details
| utoipa | fastapi | utoipa-gen | |
|---|---|---|---|
| Version | 5.4.0 | 0.1.1 | 5.4.0 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 6 | 6 | 22 |
| Crate Size | 79KB | 67KB | 156KB |
| Features | 25 | 24 | 20 |
| Yanked % | 3.4% | 0.0% | 1.7% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | 1.75 | 1.75 | 1.75 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •utoipa leads with a health score of 65/100, but none of the options score above 80.
- •utoipa-gen has the most downloads (22.6M), suggesting wider adoption.
- •utoipa is depended on by 10.1K crates — strongest ecosystem trust.
- •⚠ fastapi has not been updated in over a year.
- •fastapi is pre-1.0 — API may change.