WinMerge is an application for comparing data and merging text-like files. It allows the user the easily track changes and merge them between various versions of the files. It features a flexible editor with syntax highlighting. WinMerge is an extremely useful program especially for developers and writers but there are also alternatives which offer similar functionalities.
Here are some WinMerge alternatives which you can try:
KDiff3: KDiff3 is an open-source merge application that is available for all the three major platforms: Windows, Linux (Unix) and Mac OS X. It enables users to compare and merge two or more text files and directories. Users can find differences either line-by-line or character-by-character. KDiff3 also comes with features like automatic merge, an integrated editor and an intuitive graphical user interface.
Official Website: http://kdiff3.sourceforge.net/
Beyond Compare: Beyond Compare by Scooter Software is an efficient merge and compare tool that can compare files and folders using simple, powerful commands. You can also merge changes, synchronize files and generate reports. Using the tool, you can access data from a variety of sources such as FTP sites, media devices, WebDAV shares, SVN repositories and cloud storage. The tool comes with comparison viewers for different data types. In addition to text, you can compare tables, images, binary files, and registry hives.
Official Website: http://www.scootersoftware.com/index.php
Meld: Meld is a visual diff and merge tool aimed at coders. It allows you to compare files, directories, and version controlled projects. It provides two-way and three-way comparison of both files and directories, and has support for many popular version control systems. Meld supports many version control systems, including Git, Mercurial, Bazaar and SVN. Meld is packaged for most Linux/Unix distributions, including Fedora, Ubuntu, and Suse. Versions for Windows and Mac OS X are also available. Meld can by run without installation by extracting the archive and running bin/med from the archive folder.
Official Website: http://meldmerge.org/
DiffMerge: DiffMerge is a diff and merge utility that comes with a number of features that make it ideal for comparing, merging and syncing files. The utility shows changes between files graphically and includes intra-line highlighting and full support for editing. It also graphically displays changes between two files and allows automatic merging with full control over editing the resulting file. DiffMerge can be configured with rulesets and options for customized appearance and behaviour. It is available for Windows, Linux and OS X.
Official Website: https://sourcegear.com/diffmerge/
Araxis Merge: Araxis Merge is a text comparison and merge tool that can work on a number of file types. Common office file formats such as Microsoft Word and Excel and OpenDocument (ODF), PDF and RTF files are also supported. Araxis Merge also can be used to compare and interactively merge entire folder trees and generate HTML, XML or UNIX diff reports for sharing with other users. Araxis Merge comes in two editions. Only the Professional Edition offers three-way comparison, three-way merging, and related features. The Standard Edition is otherwise identical, but features only two-way comparison and merging.
Official Website: http://www.araxis.com/merge/index.en