schemars
v1.2.1 StableGenerate JSON Schemas from Rust code
Quick Verdict
- ✓Actively maintained (updated 54d ago)
- ✓Stable API (1.x for 6+ years)
- ✓Massive adoption (39.8K crates depend on it)
- !Heavy dependency tree (42 direct deps)
- ✓Permissive license (MIT)
Security
Deep Insights
30.1M downloads in the last 30 days (1.0M/day), up 23% from the previous period.
39.8K crates depend on schemars — it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.
schemars has only 1 owner despite 39.8K dependents. This is a bus-factor concern — consider the implications for long-term support.
The API has been stable (1.x) for over 6 years with 96 releases. This level of maturity means you can depend on it without worrying about breaking changes.
42 direct dependencies. Consider the impact on compile times and supply chain complexity.
Notable dependents include ipnet, ordered-float, serde_with, opentelemetry-proto, json-patch. When high-quality crates choose schemars, it's a strong quality signal.
Health Breakdown
Recency, release consistency, active ratio
Yanked ratio, deps, size, maturity, features
Reverse deps, ownership, ecosystem
Downloads, momentum, growth trend
Docs, repo, license, metadata
Download Trend
Top Dependents
Most downloaded crates that depend on schemars
Version Adoption
Release Timeline
Feature Flags
default =["derive", "std"]
