Decision Workspace
cargo-udeps vs guppy vs target-spec
Side-by-side comparison of Rust crates
55
cargo-udeps
growingv0.1.61
Find unused dependencies in Cargo.toml
74
guppy
growingv0.17.26
Track and query Cargo dependency graphs.
74
target-spec
stablev3.6.0
Evaluate Cargo.toml target specifications
Core Metrics
| cargo-udeps | guppy | target-spec | |
|---|---|---|---|
| Health Score | 55 | 74 | 74 |
| Total Downloads | 1.3M | 11.8M | 12.1M |
| 30d Downloads | 34.4K | 961.8K | 994.9K |
| Dependents | 0 | 1.3K | 312 |
| Releases | 59 | 75 | 47 |
| Last Updated | 27d ago | 4d ago | 55d ago |
| Age | 6y 9m | 6y 6m | 6y 2m |
Health Breakdown
cargo-udeps
Maintenance
18
Quality
15
Community
5
Popularity
7
Documentation
10
guppy
Maintenance
19
Quality
12
Community
20
Popularity
8
Documentation
15
target-spec
Maintenance
17
Quality
19
Community
15
Popularity
8
Documentation
15
Technical Details
| cargo-udeps | guppy | target-spec | |
|---|---|---|---|
| Version | 0.1.61 | 0.17.26 | 3.6.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 9 | 25 | 9 |
| Crate Size | 52KB | 156KB | 39KB |
| Features | 2 | 3 | 4 |
| Yanked % | 0.0% | 4.0% | 2.1% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | — | 1.86 | 1.86 |
| Owners | 1 | 3 (team) | 2 |
Links
Quick Verdict
- •guppy leads with a health score of 74/100, but none of the options score above 80.
- •target-spec has the most downloads (12.1M), suggesting wider adoption.
- •guppy is depended on by 1.3K crates — strongest ecosystem trust.
- •cargo-udeps, guppy are pre-1.0 — API may change.