What are some alternatives?
ImageOptim - Faster web pages and apps.
XtraFinder - Tabs & Dual Panel. • Arrange folders on top. • Cut & Paste. Copy queue. • Global hotkeys.
Hazel - Lighweight update server for Electron apps
muCommander - If you want a cross-platform file manager, muCommander is one of the best options available. It supports a wide range of protocols, including HTTP/HTTPS, SMB, FTP, SFTP, and many others. Read more about muCommander.
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
CodeKit - CodeKit allows you to optimize the performance of your website by automatically and efficiently compiling a variety of popular languages.