Is there a service for translating to transliteration with adding underscores instead of spaces?

Question

Search Engine Optimization

Good afternoon!
You need to rename the image names. There is a Russian name and I would like to translate them into transliteration with the addition of an underscore. I understand that you can get by with the usual search>replacement, but what if there is a similar service?

Answer 1

It's easier to recursively rename through code.

Answer 2

these are the recommended services for CNC transliteration by Yandex and Google,
Yandex
Google
I think they are also suitable for files, but I would write my crutch, because tomorrow third-party services will die and stay on the beans.
If you ALREADY have a bunch of files to rename, it's really easier to write a tool in 15 minutes than to look for some ready-made solution. Search-replacement IMHO will not work, some Russian characters are not transliterated into 1 character like.