Best Free Text Editor

If Windows Notepad is not enough for your text editing needs, below given are three notepads with  some additonal feaures:

Best Overall - EditPad Lite
A powerful notepad which provides tabbed interface, line numbering, unlimited redo/undo, adding snippets and maintaining last session, extensive search capability using regular expressions, highliting web and email addresses. The software also includes it's own special character map.

Best Tiny App - ATPad
A portable notepad which provides tabbed interface, line numbering, unlimited redo/undo, adding snippets and maintaining last session.

Good for Web Development - Notepad++
Notepad++  supports regular expressions, provides HTML & CSS libraries, supports HTML5 & CSS3, can autocomplete HTML code and provides conversion between HTML & Text.