EssentialPIM

Wunderlist is the easiest way to manage and share your to-do lists. Whether you’re planning an overseas adventure, sharing a shopping list with a loved one or running your very …

Outlook, part of the Microsoft Office suite, is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.

Apple Mail changes the way you interact with your email every day. Mail displays your messages and open email side by side in a widescreen, two-column view. The favorites bar …

Task management has never been this easy. Simplicity, however, is not achieved at the expense of powerful features. Download your free trial today and start getting more things done with …

Based on Thunderbird but Postbox is not open source. "A new way to work with email Postbox offers powerful new ways to find, use, and view email messages and content, …

Simple GTD application to manage your tasks and to-dos. Syncs with web server. Complete with the usual Inbox, Today, Next, Tomorrow, Scheduled and Someday "buckets" as most GTD programs have. …

Sparrow is a minimalist mail application for Mac. It was designed to keep things simple and efficient. No fancy stuff here... just your mail and nothing else. Sparrow supports all …

Task Coach is a well-structured, portable, Open Source todo / task manager (supporting 50 languages). It grew out of frustration that well-known task managers, such as those provided with Outlook …

Your life is complicated, but managing it doesnt need to be. The Hit List is a task manager that is simple to use, yet powerful enough for the most demanding …

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.

Org-mode is for keeping notes, maintaining ToDo lists, doing project planning, and authoring with a fast and effective plain-text system. Available also as MobileOrg on iPhone (...

TimeGT is the only productivity tool that blends David Allen's Getting Things Done (GTD) and Eisenhower's priority method (task is either urgent, important, none or both). Tasks are related to …

The free Zimbra Desktop client allows you to meld the online and offline worlds – storing and synching your email, calendar, contacts, files and documents in the cloud, yet having …

Super awesome task management. Nitro is the best way to get things done. It's simple, fast and powerful at the same time. Nitro also syncs with Dropbox or Ubuntu One. …

OmniOutliner is an amazingly flexible program for creating, collecting, and organizing information. Use OmniOutliners document structure to brainstorm new ideas, drill out specifics, and line up the steps...

Tasque is a simple task management app (TODO list). The main window has the ability to complete a task, change the priority, change the name, and change the due date …

KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE. It supports calendars, contacts,...

The ultimate replacement for spreadsheets, mind mappers, outliners, PIMs, text editors and small databases. Suitable for any kind of data organization, such as To-do lists, calendars, project management,...

Todo Pro is your personal assistant and ready to help you get stuff done. Todo comes with powerful tools to tackle everything from "honey-dos" to important work projects. Pull out …

Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under one roof. Thanks to the powerful KPart technology, existing applications are...

Meet Hub List, the open source GTD style todo list for hackers!

Simple Mail is a mail client for Firefox. It allows you to get notified, read and write messages for multiple email accounts inside Firefox. Usage: Configure one or more accounts …

iGTD: Getting Things Done for MAC is a very useful MAC tool to get organised

Firetask combines concepts from David Allen's innovative Getting Things Done (GTD) approach with practical elements of classical task management such as due dates and priorities. Firetask's...

Cross-platform, portable organizer to manage personal and shared projects, tasks, schedule, contacts, bookmarks, notes, goals. Includes diary, expense and time tracking, planner, tagging and search facilities,...