Open source note taking and to-do app with synchronization
Machinery is an asynchronous task queue/job queue
An open-source, self-hosted memo hub with knowledge management
All your favorite services in one place
Simple Online Planning
sleek is a todo.txt manager, free and open-source (FOSS)
private digital diary & note taking appliaciton
Small Business Appliance
The Freeplane add-on that syncs a GTD mind map with a todo.txt file
a free mind mapping tool, to especially assist decision making
A mini todo and project management application
QNC is a command line interface app for creating quick notes
Free flexible open source todo manager featuring hierarchical tasks
A note taking program with WebDAV sync
Create sticky notes, to-do list, journals & reminders all in one app
An immutable list with unmatched performance and functional API
Generate Work Breakdown Structures (WBS) in Excel.
Sticky notes/post-it application for linux
App following Seinfeld Productivity Chain approach.
An open-source task manager for the Android™ platform
Organize your thoughts with ThoughtStack!
Unofficial Evernote client for Linux desktop