adler2 is used at run time in 37,621 crates (of which 28,806 optionally). It is a direct run-time dependency in 1 crate. It's used at build time in 1,000 crates (of which 755 optionally, ). It's used only as a dev dependency in 3,238 crates.

Depender (with downloads and own rev deps) adler2 version
8.9M 114 miniz_oxide ^2.0