Ok i’ll be honest this might not be nearly remotely related to genealogy, unless you count modifying your genealogy website, then it is a great tool. I use Crimson Editor to modify the template to this website. Also it is excellent to modifying templates for WordPress. I discovered this great tool years ago and use it to develop and modify websites.
It also provides search functionality to search text within text files or if you need to replace a certain word on multiple documents. Best thins it highlights in different colors markup languages.
Best of all it is completely free!
Description from their website:
Crimson Editor is a professional source code editor for Windows.This program is not only fast in loading time, but also small in size (so small that it can be copied in one floppy disk).
While it can serve as a good replacement for Notepad, it also offers many powerful features for programming languages such as HTML, C/C++, Perl and Java.
Syntax Highlighting for HTML, C/C++, Perl, Java, Matlab and LaTeX. Also, it can be extended for other programming languages based on custom syntax files.
Other features include undo/redo, user tools, macros, spell checker and more.
Get Crimson Editor: