str_indices is used at run time in 202 crates (of which 6 optionally). It is a direct run-time dependency in 6 crates. It's used only as a dev dependency in 10 crates.

Depender (with downloads and own rev deps) str_indices version
47K 89 ropey ^0.4
2.2K 3 crop ^0.4.0
1.9K 2 jumprope ^0.4.0
1.9K 1 diamond-types ^0.3.1
130 1 too ^0.4.4
text-buffer ^0.4.3