Mac OS X Softwares to Side-by-Side comparison

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.

Kaleidoscope is a powerful and flexible diff and merge tool for macOS, designed for developers and content creators to compare text, images, and folders with ease. Its intuitive interface and comprehensive feature set streamline workflows for identifying changes and resolving conflicts.

PageSpeed Insights is a free online tool provided by Google that analyzes the speed performance of web pages on both mobile and desktop devices. It provides detailed reports on how well a page is performing and suggests actionable recommendations to improve its loading speed and overall user experience.

PDF Studio is a robust, cross-platform PDF editor designed for a wide range of users. It provides comprehensive tools for viewing, creating, editing, annotating, securing, and converting PDF documents, offering a powerful alternative to Adobe Acrobat with a perpetual license option.

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.

SmartGit is a powerful graphical Git client designed for developers across Windows, macOS, and Linux. It provides a visual interface to work with Git repositories, offering a comprehensive feature set for version control, code review, conflict resolution, and seamless integration with popular hosting platforms like GitHub and Bitbucket.

Araxis Merge is a powerful two- and three-way file comparison and merging application designed for developers, technical writers, and legal professionals. It simplifies the process of identifying differences between files, folders, and even database content, offering intuitive merging tools.