base16ct is used at run time in 304 crates (of which 143 optionally, 17 directly). It's used at build time in 5 crates (1 directly). It's used only as a dev dependency in 8 crates.

Depender (with downloads and own rev deps) base16ct version
388K 36 elliptic-curve ^0.1.1
331K 6 sec1 optional ^0.1.1
5.0K 9 serdect ^0.1.1
1.5K 1 launchdarkly-server-sdk-evaluation ^0.1.1
950 mdbook-plantuml ^0.1.1
240 rosbag ^0.1
190 1 ocipkg ^0.1.1
150 google-cloud-storage ^0.1
140 aws-sg-cleanup ^0.1.1
edgedb-tokio ^0.1.1
fash ^0.1.1
1 fetch-data ^0.1.1
haveibeenrusted ^0.1.1
onebm ^0.1.1
redone ^0.1.1
sbom-ghr ^0.1.1
tapo ^0.1
2 tbb build ^0.1