Ztree is a project dedicated to implementation of several text-tree applications inside GNU Emacs. It consists of 2 subprojects: ztree-diff and ztree-dir.

ztree-diff is a directory-diff tool for Emacs inspired by commercial tools like Beyond Compare or Araxis Merge. It supports showing the difference between two directories; calling Ediff for not matching files, copying between directories, deleting file/directories, hiding/showing equal files/directories.

ztree-dir is a simple text-mode directory tree for Emacs.