memchr
v2.8.0 StableProvides extremely fast (uses SIMD on x86_64, aarch64 and wasm32) routines for 1, 2 or 3 byte search and single substring search.
Quick Verdict
- ✓Actively maintained (updated 49d ago)
- ✓Stable API (2.x for 10+ years)
- ✓Massive adoption (17.1K crates depend on it)
- ✓Tiny footprint (98KB, 3 deps)
- ✓Permissive license (Unlicense OR MIT)
Security
Deep Insights
62.7M downloads in the last 30 days (2.1M/day), up 22% from the previous period.
17.1K crates depend on memchr — it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.
The primary maintainer publishes 84 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.
The API has been stable (1.x) for over 10 years with 44 releases. This level of maturity means you can depend on it without worrying about breaking changes.
Only 3 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.
Notable dependents include serde_json, regex-automata, regex, aho-corasick, futures-util. When high-quality crates choose memchr, 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 memchr
Version Adoption
Release Timeline
Feature Flags
default =["std"]
