TotalFinder - TotalFinder is a plugin for Finder.app which adds tabs like in Chrome browser, dual panels similar to TotalCommander and more tweaks.
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
Path Finder - The Finder, reinvented. Path Finder is an award-winning file browser and management application for Mac OS X.
Forklift - The most advanced dual pane file manager and file transfer client for macOS.
Double Commander - Double Commander is a cross-platform open source file manager with two panels side by side.
ImageOptim - Faster web pages and apps.