Compare PDF
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. Folder comparison function allows to compare two folders and... Finally, you can bring comparison details to simple or advanced structured report. ... If you work with plain text, then you can edit compared documents, apply or decline changes.
http://www.compare-pdf.com/cmp_pdf.exe - 2Mb - Download - Screenshot

Compare Suite
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. Folder comparison function allows to compare two folders... Finally, you can bring comparison details to simple or advanced structured report. ... If you work with plain text, then you can edit compared documents, apply or decline changes.
http://www.comparesuite.com/cmp_suite.exe - 2Mb - Download - Screenshot

Excel Compare
Excel Compare is a tool that saves you the trouble of manually searching for differences and offers you computer-aided comparing of Excel files. Excel Compare is a tool that allows you to compare Excel files, Excel spreadsheets and selected ranges of sheets. ... Excel Compare compares data straight from your worksheets, and presents the results on a new Excel sheet as a publication-quality report (Difference Report), that is ready to print or save. ... Features: Comparison: - Supports all versions of Microsoft Excel - Allows for comparing of sheets, that contain a database structure -...
http://www.formulasoft.com/download/xlsc.zip - 1Mb - Download - Screenshot

Free Database Compare
The SQL Compare application will allow you to compare the structure of two SQL server databases and display all the differences between them. You can compare databases online or you can take snapshots of the structure of the databases and compare them off-line, which is ideal for when you have a... After comparing you will be allowed to save the results of the comparison to an HTML file.
http://starinix.com/files/SQLCompare.exe - 435Kb - Download - Screenshot

Compare And Merge
Compare and Merge is a visual file 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.
http://www.compareandmerge.com/download/compareandmerge.exe - 905Kb - Download - Screenshot

VBA Code Compare
VBA Code Compare allows you to compare and merge any Visual Basic code embedded into a VBA project (macros, sheet code, module code etc. ). This tool uses direct access for working with VBA modules. Thus, you don't have to export the source code to a file for comparing and import the edited code... VBA Code Compare allows you to download the source code of two modules, compare them, synchronize (merge) different parts of code, edit the code before and after comparing and save the changes. ... The interface of VBA Code Compare gives you a chance to view the comparison report in two...
http://www.formulasoft.com/download/VBACompare.zip - 959Kb - Download - Screenshot

Directory Digest
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.
http://freeweb.siol.net/druksp12/digest.zip - 306Kb - Download - Screenshot

Win Compare
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... Win Compare also allows you to only compare files from a specific filter.
http://pages.infinit.net/urusei/WinCompare.zip - 563Kb - Download - Screenshot

Active File Compare
Active File Compare is an advanced utility for the comparison and synchronization of any text files in visual mode, it reports the results of the comparison in two side-by-side windows on the screen. This utility is an excellent tool for comparing source code versions since it allows you to... Active File Compare has its own File Manager consisting of two side by side windows. ... You can control the list of files to be displayed in the File Manager by using filters. ... Supports Zip, Tar and GZip archives.
http://www.formulasoft.com/download/afc.zip - 1Mb - Download - Screenshot

DiffnMerge
Quick and Easy File and Folder Comparing. With Drasbek DiffnMerge you can compare and merge files and folders. Compare two text files and see the differences in the two files side by side, then merge the text files manually or automatically by inserting the changes as programming language... As a special feature, you can compare two HTML documents side by side using the Microsoft Internet Explorer document hierarchy. ... This makes it particularly easy to compare HTML documents even if the tags are organised differently in the two documents.
http://www.drasbek.com/dminst13.exe - 2Mb - Download - Screenshot