Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.

C-Organizer - C-Organizer is a robust software tool designed for the professional manager that permits them to organize business activities altogether.

OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.

Efficcess - Efficcess is intelligent, personalized information management software that enables you to organize things having state-of-the-art technological functions in place.

Standard Notes - A safe place for your notes, thoughts, and life's work

AllMyNotes Organizer - AllMyNotes Organizer is a multi-functional hierarchical information manager for Windows.