Finder is described as 'The Finder is the first thing that you see when your Mac finishes starting up. It opens automatically and stays open as you use other apps. It includes the Finder menu bar at the top of the screen and the desktop below that' and is a popular File Manager in the file management category. There are more than 100 alternatives to Finder for a variety of platforms, including Windows, Mac, Linux, Android and Android Tablet apps. The best Finder alternative is Double Commander, which is both free and Open Source. Other great apps like Finder are Total Commander, Files, Spacedrive and Dolphin File Manager.
GNOME Commander is a "two-pane" graphical file manager for the GNOME desktop environment. GNOME Commander aims to fulfill the demands of more advanced users who like to focus on file management, their work through special applications and running smart commands.
Total Manager is Total Commander for Mac version - an all-in-one app to manage loads of files in an efficient way. Total Manager = Archiver / Unarchiver with Password encryption + Photo Viewer + Videos,Audios Player + FTP, SFTP Client + ...
Finding files and organizing your computer just go a lot easier. Dora is the smart file explorer designed to save you time and frustration.
Nomad.NET is a powerful dual-pane file manager complete with breadcrumbs, thumbnails, integration with explorer plugins, and even support for multiple tabs.
Manage your files the way you always do, using two panels and the keyboard (and sometimes the mouse). Introducing the MaxCommander.
Dopus5 (short for Directory Opus 5) is a well-known Workbench clone for AmigaOS-based computer systems. It features file manager functionality and has been a popular Amiga software title for many years.
FolderFresh is a small tool that organises messy folders automatically. It sorts files into simple categories such as Documents, Images, Videos, Audio, Archives, Code, and Other.
Deepin File Manager is a powerful & easy-to-use file managing tool developped by Deepin Technology.
Xfile is a completely Cocoa and Unix based file manager for the OS X operating system written for professional developers and system/network administrators.
Smart and free file manager for Android with perfect set of features. It provides quick and convenient access to your pictures, music, videos, documents and other files. You'll find that all operations on files become easy and more intuitive.
File Explorer Pro is a free, secure tool that helps you find file faster, manage files easily, powerful file manager with a clean, and intuitive interface. You can easily find how many files & apps you have on your device at a glance instantly.
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This is by far the best alternative to finder available on Linux. They have very much in common including the view in columns, wich is the main hallmark for Finder.