Code Compare is an advanced comparison and synchronization tool that compares text, source code, XML files and directories then, highlights differences and merges content via its visual interface. Code Compare can make version comparing and code reviews a much easier process.

CompareData is a native Windows cross-dbms application that allows you to visually compare and synchronize data between two SQL databases using ODBC drivers. You can retrieve all/some data for a table/view from two databases and compare the data visually to see differences highlighted on the screen. You can also compare the data of two sql queries

Compare Suite can compare both - related and non-related files.
"By keywords" comparison feature highlights common and unique keywords, allowing to compare non-related files.
"Word by word" comparison compares files with a common ancestor.
If you work with plain text, then you can edit compared documents, apply or decline changes.
Finally, you can bring comparison details to simple or advanced structured report.

Beyond Compare is a directory and file compare utility. Synchronize files between laptop and PC, home and office, etc. Compare directory trees side-by-side with mismatches highlighted. Display text files side-by-side with changes highlighted. Great for merging changes to source code. Handles minor editing, Unicode files, Delphi form files. Save favorite sessions for quick access. Built-in FTP and zip support.

Directory compare & integrity check tool. Unlike most directory compare tools, it is intended for use in cases, when two directories can not be directly compared. Main features: compare directories on computers that are not connected, compare the same directory over time,
very short digests that in most cases fit a floppy even for large directories

Compare PDF can compare both - related and non-related files.
"By keywords" comparison feature highlights common and unique keywords, allowing to compare non-related files.
"Word by word" comparison compares files with a common ancestor.
If you work with plain text, then you can edit compared documents, apply or decline changes.
Finally, you can bring comparison details to simple or advanced structured report.

Compare and Merge is a visual file compare and source code compare utility. It lets you see the differences between text files, and makes it easy to resolve these differences. For programmers, web developers, and anyone else who works with multiple revisions of files. New features: Quick Bar for faster compares, Smart Refresh mode, Explorer context menu, new options, various bug fixes and tweaks.

A must have for those who often deals with identifying files that have been changed.
New IsEqual will help you to quickly identify differences between files even with multitude of new features. IsEqual will do it in the most informative way - visual. Those parts that have been added or removed will be marked in different colors.
IsEqual will satisfy all your file compare and file merge tasks.

Compare, view, synchronize and merge files from various folders very easily with this tool. See the differences and copy lines from one file to another instantly. Perfect for programmers who want to compare source codes in many languages. Compare files according to many rules like size, modified date, created date...

Quick and Easy File and Folder Comparing.
Compare two text files side by side, then merge the text files manually (point-and-click) or automatically. Recursively compare and synchronize trees of folders and files to find the differences both in file presence and file contents.
Compare two HTML documents side by side using Microsoft Internet Explorer (Compare HTML documents even if the tags are organised differently in the two documents).