Wunderlist is a beautifully designed and simple to use to-do / task app you can use on multiple platforms including Windows, iOS and Mac OS X. It is free for everyone, you can un...
Go For It!
A modern, open source, todo list application with built-in "Pomodoro timer" functionality available for Windows and Linux.
Microsoft OneNote is a note-taking app by Microsoft which also comes with a to-do list feature.
Keep is a note taking tool from Google which can be used to make checklists. We have an option to make a note as a to-do list with checkboxes. You can install this in your PC/ Mac
Priority Matrix is a prioritized to-do list app that works on Windows, macOS, iOS, Android, as well as offline. While offline, you can access everything in the system, add tasks,...
Todoist is a to-do list app, with offline support for Windows app available since 2013. It's used by over 1.7 million people. It compiles tasks and subtasks into simple lists...
Task Coach is a simple open source to-do manager to keep track of personal tasks and to-do lists. It is designed for composite tasks, and also offers effort tracking, categories,...
My To-Do List widget
My To-Do List is a widget for Windows with Windows Sidebar / Gadgets (bundled in Windows Vista and 7, and needs to be installed separately from Windows 8 onward).
Free to-do list manager based on the Getting Things Done (GTD) concept.
gTasks is a 3rd party Google Tasks app for Windows.