Text to HTML 

This program will convert a book in text format into HTML files containing a separate file for the Index, Table of Contents and each Chapter. Links from the TOC to each Chapter, and links at the end of each Chapter to the Next Chapter
text conversion

Text Monkey PRO 

Text Monkey PRO is a clever program that cleans up ugly, over-quoted email text. It also includes 40 other handy functions. Text Monkey operates on text as it resides on the Windows clipboard, so it extends the functionality of every program you use.
email cleanup email quote removal text conversion sort auto-number replace indent unindent

NoteTab Pro 

A leading-edge, award-winning text and HTML editor. Handle huge files with ease, convert text to HTML, build document templates and take charge of your code. Fully extensible, with a powerful scripting language to meet the needs of the serious user.
html text editor text editor html editor notepad notetab web spell checker thesaurus tabs autocorrect search and replace programmable