Kaleidoscope Alternatives for Linux

Meld is an open-source visual diff and merge tool designed for developers. It helps in comparing files, directories, and version controlled projects, facilitating easy identification of differences and efficient merging of changes.

Beyond Compare is a powerful and flexible utility for comparing files and folders. It highlights differences in text, code, images, and binary data, and provides robust tools for merging changes, synchronizing directories, and creating snapshots for archiving.

KDiff3 is a versatile graphical file and directory comparison and merging tool, designed to help users identify differences, merge changes, and synchronize files and folders efficiently. It supports comparing up to three files or directories simultaneously, offering detailed character-by-character analysis and a robust merge editor.

DiffMerge is a powerful, yet discontinued, file and folder comparison and merging tool. Designed with developers and content managers in mind, it facilitates side-by-side analysis, three-way merging, and directory synchronization, aiding in conflict resolution and version control tasks.

WinMerge 2011 is a powerful, open-source file and folder comparison tool for Windows. It helps users quickly identify differences between files and directories, offering advanced merging capabilities and support for various data types, making it ideal for developers and anyone needing to reconcile file changes.

SmartSynchronize is a robust, multi-platform file and directory comparison and merging tool. Ideal for developers, writers, and anyone needing to effectively manage file differences and synchronize content across folders.