OutWiker is a personal wiki and outliner with notes stored in a tree view, similar to directories on a disk. Plain text, HTML, and wiki format files are supported with pages capable of being linked to each other. Each tree branch can be opened as a separate wiki. Other features include tag support, global search (notes and tags), bookmarks, HTML syntax highlighting, and icons for notes.
OutWiker can be downloaded with or without plugins
Cross-platform with a client available for Linux.
