Programmers Notepad(PN1) is an open-source text editor targeted at users who work with source code.

dnGrep allows you to search across files with easy-to-read results.

pyRenamer you can change the name of several files at the same time easily.

EditPlus is a text editor for the Microsoft Windows operating system.

PowerGREP is a powerful Windows grep tool for searching through files and folder, performing complex search and replace operations.