Best diff software for free download

Manually or automatically compare files, folders, text files, source code, Word documents, Excel spreadsheets, and pdf files. You can even compare files within zip files. The Lite Edition contains basic comparison and synchronization functionality.
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Altova DiffDog 2008 is the developer's dedicated differencing utility. This unique XML-aware synchronization tool quickly compares files and directories then highlights differences and merges content via its straightforward visual interface.
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Compare, sync, merge two file folders from any device or computer. Folder differences / comparisons are made visible to the user before synchronization. Synchronization process done safely through simple wizard. Keep home and office files organized.
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Beyond Compare is a Windows utility that combines directory compare and file compare functions in one package. Use it to manage source code, keep directories in sync, compare program output, etc.
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ZSync is a multifunctional folder synchronizer. Because of its universal approach, it's equally great for synchronizing with laptop, backing up data, publishing web site over the FTP, updating AV databases, synchronizing with remote computer, finding differences between two folders, and much more.

Unlike other synchronizers that merely compare which of two files is newer, ZSync is able to remember the synchronization state and track changes in each folder individually. Thus, the program appears to be more accurate; it detects suspicious changes and prevents conflicts (when the same file changes in two locations.)

The program is easy and convenient to operate. Just a glance at the screen is enough to instantly see the overall status, what has changed, how serious the problem is, and what action is suggested. Gravity levels (changed, suspicious, conflict, etc.) are marked with color. File and folder state is marked with easy-to-read labels, and where some actions are required - the program displays corresponding buttons. If certain files or folders should not be synchronized - just drag them to the "off" category.

ZSync's power is best demonstrated during synchronization with a remote computer (e.g., home and office computers.) Any data transmission channels are good for this: e-mail, flash memory, even the regular floppies. The unavoidable blunders (could not deliver the message, unable to read the disk, etc.) do not cause errors; they only have ZSync try a bit harder and take the necessary steps to ensure your work result's safety.
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zsCompare allows you to manually or automatically compare and synchronize Windows or Mac OS X files, folders, zip files, and jar files between local directories or networked computers.
You can also compare the contents of text files line by line, and then merge the files to include only the changes you want. You can also compare text that has been input either by typing it in, or by copying from non-text files such as Word documents, Excel spreadsheets, and PDF files. Finally, zsCompare includes the functionality found in zsDuplicateHunter for free. This functionality allows you to find and remove duplicate files from your computer which saves hard drive space and makes common operations like searches and backups faster.

The key features of zsCompare are described below. For a complete list of features, please visit our website.
Key Folder Comparison Features: Compare and synchronize two folders; Compare and synchronize zip files as if they were part of the regular file system; Create, update, and delete zip and jar files; Save and reload commonly used comparisons for easy reuse; Fine tune the comparison being performed by setting the options used during comparison; Filter the files and/or folders being compared so only essential files are compared; Compare text from Microsoft Word, Microsoft Excel, and Adobe PDFs

Key File Comparison Features: Side by side comparison of text files; Synchronize entire files, sections of files, or individual lines in either direction; Ignore changes in case and whitespace; Results are color coded and the colors can be customized; Easily compare sections of a file that have been moved using freeform text comparison.

Key Duplicate File Finder Features: Find files in a single folder, multiple folders, an entire computer, or multiple computers; Seven different methods of deleting files; Filter files and folders by name to speed up the search and ignore unimportant files; Group files by name size, and/or crc.
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I've been using a large number of file synchronization tools. From the very
first DOS command-line utilities to powerful plug-ins in modern file shells,
such as FAR or TotalCommander. They all are based on the same simple
principle. You give them two folders to compare and they return to you a
list of files that differ. The modern tools have a better interface. They
allow you to visually select folders on file panels and highlight
differences visually. Normally, they also allow you to select a few options
to tune-up the comparison. Usually, options are just file attributes to
compare. That's all that they can do for you. And I was thinking,
erroneously, that it's a perfect solution and that there is nothing more
that could be done. Then I learned about Diff Commander...

Diff Commander brings a brand new level of flexibility and usability into
folder comparison and file synchronization. How is it different from all I
have seen before? At first, it introduces its own, very specialized
interface. Files and folders are shown on two panes as a tree. The program
supports compressed archives that are shown as normal folders. File
comparison was never so visually attractive before. You can also compare
folders recursively. Differences are colorfully highlighted on both panes.
The program allows you to tune-up the comparison by providing numerous
settings. You can filter files by masks, skip hidden and system files, turn
on and off recursion, and much more...

But the main enhancement is the ability to define synchronization rules.
The program alerts you of each file that differs and that needs to be copied
or moved according to the rules. You can synchronize all files at once or
one by one.

All settings are stored in Profiles. You can have different settings for
different projects. The program also can be used for batch comparisons. It
reads folder names from a text file and does comparison/synchronization
automatically.
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4TOPS Compare Excel Files is an easy to use program that clearly reports where and what the differences between two Excel workbooks are. features: - Easy to interpret reports using HTML; - Differences in the Analysis report and Visualization reports are hyperlinked; - Use with complete Microsoft Excel files, ranges or tables (both horizontal and or vertical); - Supports table analysis with multiple identifying columns; - Save comparisons settings to reapply later; - Can be used as part of an automated process using API (ActiveX); - Use in code to implement complex comparisons involving different areas; - Button to generate macro corresponding to current settings.
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ZsCompare is a cross platform comparison and synchronization utility from Zizasoft. ZsCompare runs on Windows, Mac OS X, and Linux. It is available either on CD or by downloading it from our website at www.zizasoft.com.

ZsCompare has been designed to allow you to simply and easily compare and synchronize directories and the files within them, the content of files, and snippets of text which can come from virtually any source. You can run comparisons on local directories, networked computers, or remove-able media such as CDs, DVDs, and flash drives. With all comparisons, you can customize the settings used to run the comparison in order to fine-tune the results to meet your needs.

The Lite Edition contains basic comparison and synchronization functionality. With the Lite Edition, you will be able to compare directories, zip files, jar files, text files, and freeform text.

The Standard Edition contains all of the features in the Lite edition plus it adds several additional features needed for maximum productivity. The Standard Edition includes support for creating and comparing snapshots as well as support for changing attributes, timestamps, and file names directly from the results. It also allows you to create patches for changed files. The standard edition also has more powerful text comparison options, and the ability to directly edit the text of a file from the results. With the standard edition, you can also view results in a binary mode which allows you to compare non-textual files.

The Professional Edition contains all of the features in the Standard edition, plus it adds support for comparing the text of Microsoft Word Documents and PDF files. It also allows you to patch changed folders in addition to changed files. The Professional Edition also lets you create and run scripts which allows you to automate the complete functionality of zsCompare.
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The DbWeigher is the software for developers using MS Access database as database backend.
With the help of this program you can compare the structures of Microsoft Access databases.
It is useful when finding the differences between the latest and previous database's structures.
You can just choose any two mdb files and see at once the differences in their structures.
Current version of the program allows you to find differences among tables, fields, indexes and relationships.
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SyncFolder is the visual file comparison/merging and folder synchronization application.

SyncFolder is designed for software engineers, web authors and other professionals who work with multiple revisions of text files or who need to keep multiple folder hierarchies in sync.

SyncFolder saves time and reduces errors by enabling you to work quickly and accurately, whether you are comparing individual files or reconciling entire branches of source code. Merge is a particularly useful tool for code review or code audit situations: the tight integration between file and folder comparison makes it easy to identify and review every change in every source file, even when comparing source hierarchies containing thousands of files. Confidence and control: for product release managers, comparing entire source code branches can give assurance that every change introduced in a particular product release is known and understood.
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ZsCompare is a cross platform comparison and synchronization utility from Zizasoft. ZsCompare runs on Windows, Mac OS X, and Linux. It is available either on CD or by downloading it from our website at www.zizasoft.com.

ZsCompare has been designed to allow you to simply and easily compare and synchronize directories and the files within them, the content of files, and snippets of text which can come from virtually any source. You can run comparisons on local directories, networked computers, or remove-able media such as CDs, DVDs, and flash drives. With all comparisons, you can customize the settings used to run the comparison in order to fine-tune the results to meet your needs.

The Lite Edition contains basic comparison and synchronization functionality. With the Lite Edition, you will be able to compare directories, zip files, jar files, text files, and freeform text.

The Standard Edition contains all of the features in the Lite edition plus it adds several additional features needed for maximum productivity. The Standard Edition includes support for creating and comparing snapshots as well as support for changing attributes, timestamps, and file names directly from the results. It also allows you to create patches for changed files. The standard edition also has more powerful text comparison options, and the ability to directly edit the text of a file from the results. With the standard edition, you can also view results in a binary mode which allows you to compare non-textual files.

The Professional Edition contains all of the features in the Standard edition, plus it adds support for comparing the text of Microsoft Word Documents and PDF files. It also allows you to patch changed folders in addition to changed files. The Professional Edition also lets you create and run scripts which allows you to automate the complete functionality of zsCompare.
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Visual Comparer its all-inclusive text files visual comparison software allowing end-users see all the differences between two text files in a split screen view mode. Visual Comparer includes full-featured text editor that supports both ANSI and Unicode files (separate versions are available for download) as well as syntax highlighting for most popular programming languages, including C++, C#, JavaScript, Perl, Visual Basic, VBScript and Pascal (Delphi). The application is very handy when there is a need to display file version changes. Visual Comparer represents all differences between two text files using graphical pane, with color lines representing new fragments of text, changed text and lines of text that were left intact. This way, finding the differences is just the matter of seconds.

Visual Comparer is intended mainly for software and web site developers that require dedicated text editor with syntax highlighting and visual comparison feature. However, the application can be used by anyone who has to deal with several versions of the same text file. Visual Comparer is highly configurable, allowing customization of nearly every single part of the interface. Besides that, Visual Comparer supports plug-in architecture, which in turn allows end users expand the program functionality by adding new syntax highlighting patterns. The ability to display line numbers and create custom bookmarks makes navigating text documents real easy, while the reporting feature allows for creation of printable HTML reports covering all the differences between files.
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DF SDK is a Software development kit which provides an effective approach of creating patch and update modules, and integrating of the patch applying and/or building process directly into you own software product(s). Unlike other available products, DF SDK does not simply create incremental updates, but analyzes files at the byte level and builds the difference for updating the target file on the end-user's system.

Using DF SDK you can effectively accomplish the following tasks:
- Software updating/patching to ensure your end-users always have the latest version of your software product;
- Differential data backup for effective backup data storage in a reliable yet space-saving way;
- Version control for reliable yet efficient control under versions of your files (of any type).

DF SDK does not deal with any specific data structures, it operates with files as a binary data, and thus designed to work well on files of any type including executables, libraries, data files and others. DF SDK can be used to build a compact byte-level difference for two binary files with the following reconstruction of the new version file(s) using an old file and the result difference file on the target machine.

Available as a standard dynamic link library (DLL), DF SDK can be used almost with any Windows development language. The DF SDK API is designed to be simple enough to integrate it into your existing products/solutions, and to provide a high-grade of performance and flexibility. DF SDK comes with sample programs, and includes examples whick can simplify patch creation and applying.
The size of your files, database or document does not matter - only difference between versions does!

Free download of the demo version and flexible licensing options are available.
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You want secure applications or your system against unauthorized access, block Viruses, Trojans etc, make your system available to others but prevent them to use your personal applications. Then you've found the solution for this assignment! The X-Blocker will help you by all this assignments and offers you much more possibilities! Two examples: 1) In your family you've one Computer that your children uses too, but you don't want that the children use the Internet without your control. Now with X-Blocker it's no problem to prevent the access to the Internet! Just block all installed Webbrowsers and the access to the Internet will protected in your absence. 2) On your Business-Computer you've some applications that other people shouldn't use (e.g. your eMail Software). Sometimes you want take a break or you've a meeting but you dont want shutdown your computer everytime. Now with X-Blocker it's no problem protect access of your applications or your complete system against unauthorized access.
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AKS Image Comparer is a utility that allows you to compare two JPG files and show differences between them. For instance, this tool allows you to compare two versions of the same image, chart, diagram or scheme.

Version 1.0 features a plain image comparison algorithm, that allows you to compare images that have just minor differences. For instance, if some parts of the picture were deleted or added, Image Comparer will find and highlight these differences with blocks or colors. This is the 'by pixels' compare algorithm.

Image Comparer might not be as efficient if images were heavily changed, for instance, if an image was rotated or if it was scanned with different options. In this case more complicated algorithms are required.

Image Comparer can easily compare two images where the actual images are moved relative to each other. This is not a problem for Image Comparer, it will highlight differences without a problem.

AKS Image Comparer costs $14 for a single-user license.

About the author: AKS-Labs is a producer and publisher of another compare-related utility called Compare Suite. Compare Suite allows you to compare texts in various popular formats.
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PatchFactory is a comprehensive and innovative software updating and delivery solution, ensuring that your end-users always have the latest version of your files. PatchFactory performs almost any updating task, including synchronizing files, running an installer, updating your software, and even performing a custom action to keep your customers up-to-date and to significantly reduce your end-user support costs.

Using PatchFactory it is possible not just to create an update module for a certain version, but also monitor all your software products, versions and version components that may have different target location on the end-user's machine. This innovation is based on the advanced functionality of the new release that includes improved byte-level patch building algorithm and innovative program interface.

The innovative features of patching engine include cumulative patching to bring all in-field versions up-to-date using a single self-extracting executable, comparing files of any type and size, improved high-speed of patch building and flexible control under ratio "time/result" with the help of different comparing methods selection.

Among the new patch applying features are customizable dialogs, a familiar wizard-style runtime interface, use of key files and MD5 checks to ensure accuracy, international language support, silent install / uninstall with no user interaction required, smart automatic version check to determine the installed version, support for passworded and encrypted installs, automatic Rollback at patch applying to guarantee that the end-user's system is successfully updated and Rollback/Uninstall of the update after installation, and lots more.

Free download of the evaluation version and flexible licensing options are available.
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