maplit

4.9M downloads in the last 30 days (164.8K/day), up 24% from the previous period.

15.7K crates depend on maplit — it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

This crate is maintained by a team (2 owners), reducing bus-factor risk and ensuring continuity.

The API has been stable (1.x) for over 10 years with 10 releases. This level of maturity means you can depend on it without worrying about breaking changes.

maplit has no external dependencies — minimal supply chain risk and fast compile times.

At 9KB, maplit is lightweight. Small crate size correlates with focused, well-scoped functionality.

Notable dependents include inotify, rstest_macros, serde-wasm-bindgen, inferno, rdkafka. When high-quality crates choose maplit, it's a strong quality signal.