Nirvana Alternatives for Windows

Simplenote is an easy way to keep notes, lists, ideas and more.

A simple and friendly task manager written in Python.

MyLifeOrganized (MLO) is the most flexible and powerful task management software for getting your to-dos finally done.

fluxday is a user-friendly, free & opensource task & productivity management tool for growing startups.

Ora is a real-time all-in-one workspace for teams.

Org-mode is an Emacs Mode for Notes, Planning, and Authoring.

EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries, etc.

todo.txt is software and operating system agnostic; it's searchable, portable, lightweight and easily Todo management software.

UV Outliner is a single pane outliner with multicolumn support.

GTDNext is a task management app available online and works in Chrome, IE and Firefox.

Tasque is an open source task management application.

Conqu is a simple yet powerful task management tool designed to help you conquer your inbox and get things done.

Nozbe is a to-do, task, project and time management application.

Kana Reminder is a program which can be used to set a reminder to be triggered at a specified time.