Deflate64 is used at run time in 405 crates (of which 56 optionally). It is a direct run-time dependency in 3 crates. It's used at build time in 59 crates (of which 21 optionally, ). It's used only as a dev dependency in 18 crates.

Depender (with downloads and own rev deps) Deflate64 version
6.5M 1154 zip optional ^0.1.9
4.7M 188 async-compression optional ^0.1.5
40K 8 rc-zip optional ^0.1.7