WinMerge - WinMerge is an open source differencing and merging tool for Windows.
calculator.net - Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
Diff Text - Diff Text is an online diff text tool
XnConvert - XnConvert is an easy image converter for graphic files, photos and images available on Windows...
Diff Checker - Diff Checker is a free online diff tool that quickly and easily gives you the text differences...
CompareLists.org - Free online tool to instantly compare two lists and find matches, differences & unique items. Secure browser-based processing for TXT, CSV & Excel files.