Batch RegEx is described as 'Replace, format, and extract text in multiple files using Regular Expressions. Perform GREP-like tasks including search and replace, RegEx substitutions, data extraction, and more! Built-in RegEx editors support color syntax highlighting and tips' and is an app in the Development category. There are more than 50 alternatives to Batch RegEx for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and Chrome OS. The best alternative is Sublime Text. It's not free, so if you're looking for a free alternative, you could try gedit or Bluefish Editor. Other great apps like Batch RegEx are Notepad (Free), UltraEdit (Paid), grepWin (Free, Open Source) and TextMate (Free, Open Source).
Bluefish is a powerful editor targeted towards programmers and webdesigners, with many options to write websites, scripts and programming code. Bluefish supports many programming and markup languages, and it focuses on editing dynamic and interactive websites.
grepWin is a simple search and replace tool which can use PCRE regular expressions to search for strings of text within files. grepWin adds an entry to the shell context menu to easily search selected folders.
TextMate brings Apple's approach to operating systems into the world of text editors. By bridging UNIX underpinnings and GUI, TextMate cherry-picks the best of both worlds to the benefit of expert scripters and novice users alike.