indexmap
v2.14.0 StableA hash table with consistent order and fast iteration.
Quick Verdict
- ✓Stable API (2.x for 8+ years)
- ✓Massive adoption (100.1K crates depend on it)
- ✓Permissive license (Apache-2.0 OR MIT)
Security
Deep Insights
99.4M downloads in the last 30 days (3.3M/day). Volume is roughly flat compared to the previous period.
100.1K crates depend on indexmap — it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.
The API has been stable (1.x) for over 8 years with 55 releases. This level of maturity means you can depend on it without worrying about breaking changes.
Notable dependents include serde_json, toml, h2, toml_edit, tower. When high-quality crates choose indexmap, 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 indexmap
Version Adoption
Release Timeline
Feature Flags
default =["std"]