Producteev!

Made by the company behind WordPress , Simplenote is an easy way to keep notes, lists, ideas, and more. Your notes stay updated across all your devices. No buttons to press. It just works. Your notes are synced across your devices when you create, add to or change them.

Todoist is a task manager thats useful, fast and easy to use.

Asana is a web and mobile collaborative work management app that goes beyond typical collaboration software by enabling teams to track everything they're working on. With tasks, projects, conversations, and dashboards, Asana lets your team know who's doing what by when to help you get results. Use Asana for team communication, setting meeting agendas, running brainstorms, sharing files, or creating shared calendars--anything you can think of. You can also add partner integrations to customize Asana for your team with functionality like Gantt charts, time-tracking, and Google calendar sync. Asana is available on web, iOS, and Android and is free for teams of up to 15 people. »

Workflowy lets you organise your brain into easily manageable lists. It also works as a single-pane outliner with inline notes. It offers one-click hoisting (zooming into branches). The online version syncs with mobile apps.

Wekan, formerly LibreBoard, is an open-source and collaborative Trello -like kanban board application.

Take your tasks anywhere with this feature-packed application.

An easy to use, web-based to-do list. Get organized, stay motivated, and be more productive.

TickTick is your daily must-have to-do & task list to make all things done and get life well organized.

Kanban Tool is a leading visual management software based on Kanban method that helps companies visualize workflow, track project progress and analyze and significantly improve business processes.Kanban Tool provides powerful online Kanban boards, insightful Kanban analytics and built-in time tracking. This Kanban software was designed for Scrum and Kanban teams that want to significantly improve performance and visualize work on Kanban board.

Created by the collaboration experts behind MindMeister, the intuitive online app MeisterTask lets you turn your visual brainstorms directly into agile projects, and export your creative ideas as actionable tasks.

Org-mode is for keeping notes, maintaining ToDo lists, doing project planning, and authoring with a fast and effective plain-text system.

Track your tasks and projects in a plain text file, todo.txt. A todo.txt is software and operating system agnostic; it's searchable, portable, lightweight and easily manipulated.