URL resetting

Hey everyone.

Is there a non-extension way to completely remove, or reset, all of the URLs for products? When editing products via csv, I’m getting 100s of URL errors, even though I don’t alter the URL_key field in the csv file. And whenever I install the “standard” extension for URL management, it causes my site to break and I have to do a hard recovery. Even uninstalling the extension doesn’t restore the site.

I’ve tried Google and stack change, and they all ultimately say the same thing, to use extensions, but this isn’t an option for me. I have DB access and cli experience, so any option would be worth looking into.

Thanks in advance for your input. I greatly appreciate any help you can offer.