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serde-untagged vs serde-constant vs serde_json

Side-by-side comparison of Rust crates

Core Metrics

serde-untaggedserde-constantserde_json
Health Score553877
Total Downloads39.3M39.8K800.0M
30d Downloads4.8M10.8K53.0M
Dependents47622673.2K
Releases111181
Last Updated194d ago880d ago80d ago
Age2y 7m2y 5m10y 7m

Health Breakdown

serde-untagged
Maintenance
10
Quality
10
Community
12
Popularity
8
Documentation
15
serde-constant
Maintenance
1
Quality
15
Community
10
Popularity
5
Documentation
7
serde_json
Maintenance
15
Quality
19
Community
20
Popularity
8
Documentation
15

Technical Details

serde-untaggedserde-constantserde_json
Version0.1.90.1.01.0.149
Stable (≥1.0)✗ No✗ No✓ Yes
LicenseMIT OR Apache-2.0MIT OR Apache-2.0MIT OR Apache-2.0
Dependencies8315
Crate Size18KB7KB156KB
Features008
Yanked %9.1%0.0%1.1%
Edition202120212021
MSRV1.611.68
Owners112 (team)

Quick Verdict

  • serde_json leads with a health score of 77/100, but none of the options score above 80.
  • serde_json is depended on by 673.2K crates — strongest ecosystem trust.
  • ⚠ serde-constant has not been updated in over a year.
  • serde-untagged, serde-constant are pre-1.0 — API may change.