TreeLine is a unique cross between an outliner and a database. It stores information in a tree structure, but each node in the tree functions like a mini database with its own data types and field formats. It supports a wide variety of import/export options, one of the most useful being for Mozilla-type bookmarks.
Note: This program is not a typical tree-based outliner and requires some effort to read and digest in order to grasp the the program’s data model and associated concepts. See the How to Use section of the website.