I weight the issues of cost/complexity/frequency of use before I take on new software. I’ve generally avoided add-ons as I try to keep things as vanilla as possible to forestall problems. UPDATE: see Quick Look: A Better Finder Rename. Load up a list of files into NameChanger, make your changes, and preview how your filenames will be transformed before the changes are applied. If you like it, you can make a donation to the developers on the download page. Thumbnails/preview images are not showing until each image is clicked with mouse. NameChanger, an application for batch renaming files, is free to download. With first folder batch rename got stuck around 95. MPG: I have not looked into these products, but a quick look suggests they are vastly superior to the macOS Finder. I just tried to batch rename a folder contents. They’re not free like the Finder feature, but are vastly more capable. The ‘Big Mean Folder Machine’ is also a good app when managing large hierarchical libraries: It’s great for OCD file organization.(After using it in trial mode I was impressed enough to buy the ‘Forever Upgrade’ a number of years ago, and have benefitted ever since.) I have used it for normalizing many filenames (thousands at a time) from disparate sources, along with folder names. It’s a fantastically-capable batch processor. I think including the word ‘Finder’ in the app name makes it sound like it’s some sort of extension. If you don’t already use it, I highly recommend ‘A Better Finder Rename’: Renaming files to include date and time Don H writes:

Macos batch rename