Here is a selection of software. Some, I have written. Others are by other people, but are software which I use and would recommend.
You can click on the menu on the left to filter on one of those two categories
Notepad++ is a free text editor.

There is a text editor that comes with Microsoft Windows, called Notepad. It doesn't do very much. Notepad++ is a far more intuitive replacement, that is better at things like Search and Replace, indenting lines, selecting whole words / lines / paragraphs etc.
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