MultiReplace for Mac – This app is a great utility for taking multiple files to simultaneously find and replace text. Simply select all of your files in the open window. Then type or copy in the text you want to find and replace. Click the replace button, and all of the files will instantly be modified.

Minimum System Requirements: macOS 10.13

Download (872kb) (Compiled Mar 30, 2023)

I have too many projects to maintain, so I am distributing this without the sandbox or review layer. This app was written in only 22 lines of code, so I can guarantee you it is safe to right-click open.