autocfg
v1.5.1 StableAutomatic cfg for Rust compiler features
Quick Verdict
- ✓Actively maintained (updated 3d ago)
- ✓Stable API (1.x for 7+ years)
- ✓Massive adoption (1.0K crates depend on it)
- ✓Tiny footprint (19KB, 0 deps)
- ✓Permissive license (Apache-2.0 OR MIT)
Security
Deep Insights
67.7M downloads in the last 30 days (2.3M/day), up 24% from the previous period.
1.0K crates depend on autocfg. Strong ecosystem adoption means battle-tested code and long-term stability.
The API has been stable (1.x) for over 7 years with 18 releases. This level of maturity means you can depend on it without worrying about breaking changes.
autocfg has no external dependencies — minimal supply chain risk and fast compile times.
At 18KB, autocfg is lightweight. Small crate size correlates with focused, well-scoped functionality.
Notable dependents include num-traits, memoffset, num-iter, async-io, matrixmultiply. When high-quality crates choose autocfg, 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 autocfg
