base16ct
v1.0.0 GrowingPure Rust implementation of Base16 a.k.a hexadecimal (RFC 4648) which avoids any usages of data-dependent branches/LUTs and thereby provides portable "best effort" constant-time operation and embedded-friendly no_std support
Quick Verdict
- ✓Stable API (1.x for 4+ years)
- ✓Massive adoption (1.5K crates depend on it)
- ✓Team maintained (3 owners)
- ✓Tiny footprint (11KB, 0 deps)
- ✓Permissive license (Apache-2.0 OR MIT)
Security
Deep Insights
15.5M downloads in the last 30 days (517.8K/day), up 21% from the previous period.
1.5K crates depend on base16ct. Strong ecosystem adoption means battle-tested code and long-term stability.
The primary maintainer publishes 216 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.
The API has been stable (1.x) for over 4 years with 6 releases. This level of maturity means you can depend on it without worrying about breaking changes.
base16ct has no external dependencies — minimal supply chain risk and fast compile times.
At 10KB, base16ct is lightweight. Small crate size correlates with focused, well-scoped functionality.
17% of releases have been yanked. Check version history before pinning.
Notable dependents include elliptic-curve, sec1, serdect, p521, launchdarkly-server-sdk-evaluation. When high-quality crates choose base16ct, 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 base16ct
