CpConverter - Code Page Converter - Convert HTML/Text files to different encoding formats e.g.
Beyond Compare - Beyond Compare allows you to compare files and folders.
Batch Encoding Converter - Convert files between more than 100 text encodings and binary formats!
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
CONVERTCP - CONVERTCP is a command line utility to convert text file encoding.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.