adler2 is used at run time in 35,835 crates (of which 27,410 optionally). It is a direct run-time dependency in 1 crate. It's used at build time in 679 crates (of which 434 optionally, ). It's used only as a dev dependency in 3,151 crates.

Depender (with downloads and own rev deps) adler2 version
11.3M 107 miniz_oxide ^2.0