EssentialPIM Alternatives for Windows

Microsoft Outlook, part of the Microsoft Office Suite (not to be confused with Microsoft Outlook Express), is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.

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

The ultimate replacement for spreadsheets, mind mappers, outliners, PIMs, text editors and small databases.

ClickUp is an all-in-one project management platform that eliminates the need of using more than one tool for your organization’s workflow.

eM Client is a full featured email client with a clean and efficient user interface.

Marvin incorporates principles from behavioral psychology to help you beat procrastination, feel in control and finish your todo list. Marvin is specifically designed to help you get your tasks done and not just store them.

Postbox is an email application that helps you organize your work life and get stuff done.

Create task lists, mind maps, kanban boards, outline notes, and video chat, all in one unified workspace. Taskade is a real-time organization and collaboration tool for getting work done, faster & smarter. Taskade is free, simple, flexible, and fun!.

Notezilla is the leading sticky notes app for Windows, Android, iPhone/iPad and the web. Set reminders to sticky notes, Pin sticky notes, attach them to websites, docs & folders, sync between PCs and other devices, organize using folders and tags.

MyLifeOrganized (MLO) is a personal task outliner and to-do list manager which will help you to organize your goals, projects and tasks into a tree.