Duo Commander

A two-pane file manager in the spirit of the classic commanders — built for a screen that folds.

• Two panes side by side: copy and move between them without hunting through dialogs
• On a Surface Duo or a foldable the panes split along the hinge, so no row ends up under the seam
• On a single screen the panes slide, and the arrow at the edge swaps them
• Function bar: View, Edit, Copy, Move, Select, New folder, Delete, Pack — with a hardware keyboard it is F3–F8, Tab to switch panes, Space to select, Enter to open
• Search by name anywhere in the tree, and a selection menu: select all, clear, invert, or pick by file type — audio, video, images, documents, archives, APKs
• Archives: pack to ZIP, 7z and TAR.GZ; unpack ZIP, 7z, TAR, TAR.GZ, TAR.BZ2, TAR.XZ and read RAR
• Storage analysis: what is eating the space, split by category, with clean-up for caches and leftovers, duplicate files, files over 100 MB and empty folders
• UPnP/DLNA servers on your home network, browsable right in the pane
• FTP, FTPS, SFTP, SMB and WebDAV servers: browse, download, upload, rename and delete, with the password stored encrypted on the device
• WebDAV works with Nextcloud, ownCloud, Synology, QNAP and Seafile
• SMB shares on Windows, Samba and NAS boxes — the computers are found on the network for you
• Text viewer and editor, image preview, APK install, sharing, file properties
• Long transfers keep running with the screen off, with progress in the notification
• Nine accent colours, light and dark theme, 13 languages

Your files stay on your device. No ads, no analytics, no account, nothing is uploaded anywhere. The app asks for "All files access" because without it a file manager sees nothing but its own folder — and it uses that access for nothing else.