adler2 is used at run time in 35,467 crates (of which 26,938 optionally). It is a direct run-time dependency in 1 crate. It's used at build time in 679 crates (of which 430 optionally, ). It's used only as a dev dependency in 3,260 crates.

Depender (with downloads and own rev deps) adler2 version
10.7M 110 miniz_oxide ^2.0