Deflate64 is used at run time in 371 crates (of which 58 optionally). It is a direct run-time dependency in 3 crates. It's used at build time in 57 crates (of which 20 optionally, ). It's used only as a dev dependency in 18 crates.

Depender (with downloads and own rev deps) Deflate64 version
5.6M 1117 zip optional ^0.1.9
4.1M 186 async-compression optional ^0.1.5
37K 8 rc-zip optional ^0.1.7