fdeflate is used at run time in 2,425 crates (of which 533 optionally). It is a direct run-time dependency in 2 crates. It's used at build time in 21 crates (of which 1 optionally, ). It's used only as a dev dependency in 495 crates.

Depender (with downloads and own rev deps) fdeflate version
1.8M 331 png ^0.3.3
1 png-glitch ^0.3.4