Marta - A Free Dual Pane File Manager

Marta is a free, dual-pane file manager for macOS written entirely in Swift, making it fast and responsive to both keyboard and mouse commands, although it specializes in the former. Under development since 2016 by software engineer Yan Zhulanow of Jet Brains, Marta may move to paid model in the future but for no it can be downloaded for free at the dev's website.

Some of Marta's key features include:

• Extensive keyboard support
• No user tracking
• Ability to edit files inside archives and nested archives
• Documentation to guide users in customization
• Theme supprt (plus you can add your own)
• Plugin support through a custom Lua API
• Actions panel (instead of layers of menus)
• Quick search
• Uses Mac's Quicklook and plugins
• Toggle hidden files
• Built in terminal
• Disk usage analyzer
• Multiple tabs and windows to create workspaces