Productivity - Outline Editors (4)

TreeSheets is a mashup of many different program types including spreadsheets, mind mappers, outliners, PIMs, text editors and small databases. It has a tabbed interface and is lightweight and fast, using few system resources even with large files.

It's like a spreadsheet, but much more suitable for complex data because it's hierarchical. It's like a mind mapper, but more organized and compact. It's like an outliner, but in more than one dimension. It's like a text editor, but with structure. It is capable of many kinds of data organization, including todo lists, calendars, project management, brainstorming, organizing ideas, planning, requirements gathering, presentation of information, etc.

Functional in 64-bit and cross platform (Linux and Mac).

EssentialPIM includes a calendar/scheduler, todo list, contact manager, basic e-mail client, and tree-like multi-level notes tool that supports rich text, formatting and images.

While many advanced functions such as synchronization and encryption are exclusive in the Pro version, the program is capable of manually importing from variety of formats including Outlook, TreePad, Google calendar etc. Additionally, it can export to many formats including HTML, vCard, iCal, RTF, CSV, iPod, text etc.

Gwennel is a lightweight word processor that takes an innovative approach to formatting options by separating them into a tree-like structure. This is useful for handling long documents with clear, organized formatting tools or for users who wish to focus on the text first and formatting second. Any style changes (such as headings, lists, or colors) are propagated throughout the entire document and, although only able to open and save OpenDocument (.odt) files, this makes the program a capable WYSIWYG editor. Additionally, users can open existing files and make rapid changes to the entire document.