Dual Pane Opus Filer

A Linux alternative to Directory Opus. Independent open-source project,
not affiliated with or endorsed by GPSoftware.

OPUS DUAL-PANE & TREE WORKBENCH
• Collapsible Folder Tree lazy-loading real directories under /, your Home
directory, and mounted drives (/proc/mounts, /media, /mnt).
• Dual File Listers (Left & Right) with clickable Breadcrumb navigation bars,
instant wildcard/substring Filter bars, and Flat View modes (Off / Mixed
Files & Folders / Files Only recursive).
• Real chunked Copy and Move operations between panes with progress bar and
optional SHA-256 verification, plus Rename, MkDir, Delete, and Swap Panes.
• Docked Right-Side Live Viewer automatically rendering images, syntax-
highlighted UTF-8 text/code, and binary Hex Header dumps with SHA-256.

FOLDER SYNCHRONIZE & COMPARE
• Real 1-way (Left->Right, Right->Left) and 2-way bidirectional folder
comparator highlighting New Left, New Right, Newer, Different Size, and
Equal entries with optional byte/SHA-256 deep comparison and live sync.

CUSTOM TOOLBAR ACTIONS & INLINE BATCH RENAME
• Define custom quick-action command buttons and save/load dual-path lister
presets in persistent storage.
• Inline regex and sequential batch renamer with collision detection on
selected lister files.

SUPPORT & DONATE
• Created by Thanh Nguyen — https://buymeacoffee.com/thanhnv128b