Alternatives to EssentialPIM for Linux with any license

Evolution

Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list...

Free Open Source Linux BSD S/MIME GNOME OpenPGP
CalDAV Calendar integration Built-in RSS reader CardDAV ... Encrypted email Integrated Spam Protection Multiple languages POP3 Support Add a feature

160 Like
Lightning Calendar

Organize your schedule and events in a calendar fully integrated with Thunderbird or Seamonkey email. .

Free Open Source Mac Windows Linux Thunderbird SeaMonkey
CardDAV CalDAV Add a feature

165 Like
Remember The Milk

Take your tasks anywhere with this feature-packed application. See tasks located nearby, add and complete tasks on the go, organize upcoming tasks, and sync it all...

Freemium $ $ $ Mac Windows Linux Web Android ... iPhone Android Tablet iPad Blackberry 10
Support for Keyboard Shortcuts Add a feature

335 Like
ToDoList

A simple but effective way to keep on top of your tasks, 10 languages. ToDoList is a rare form of task management tool, one that allows you to repeatedly sub-divide...

Free Open Source Windows Linux Self-Hosted
Gantt-charts Export to iCalendar File Versioning Kanban boards ... Portable Add a feature

131 Like
RedNotebook

RedNotebook is a graphical diary and journal helping you keep track of notes and thoughts. It includes a calendar navigation, customizable templates, export...

Free Open Source Mac Windows Linux PortableApps.com Xfce
Auto-saving Add a feature

100 Like
Org mode

Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.

Free Open Source Mac Windows Linux
Customizable Command line interface Emacs integration Export to HTML ... Extensible by Plugins/Extensions Hierarchical structure Hierarchical tagging Infinite hierarchical depth Lightweight Plain text file Portable Privacy focused Search by tags Tag based Add a feature

69 Like
Geary

Geary is an email application built for GNOME 3. It allows you to read and send email with a simple, modern interface.

Free Open Source Linux BSD GNOME
Multiple Account support Add a feature

72 Like
Task Coach

Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists. It is designed for composite tasks, and also offers effort tracking...

Free Open Source Mac Windows Linux iPhone BSD ... iPad PortableApps.com
Portable Add a feature

120 Like
TreeSheets

A "hierarchical spreadsheet" that is a great replacement for spreadsheets, mind mappers, outliners, PIMs, text editors and small databases.

Free Open Source Mac Windows Linux
Hierarchical structure Add a feature

59 Like
Todo.txt

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...

Free Open Source Mac Windows Linux Android iPhone ... Android Tablet BSD iPad
Command line interface Portable Add a feature

57 Like
Restyaboard

Open source Trello-like kanban board. Based on Restya platform.

Freemium Open Source Linux Web Self-Hosted
Works Offline Gantt-charts Support for IMAP Kanban boards ... Real time collaboration Web-Based Add a feature

51 Like
Kontact - KMail

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...

Free Open Source Mac Windows Linux BSD
No features added Add a feature

33 Like
Kontact

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...

Free Open Source Windows Linux
Convert Email to Task Add a feature

26 Like
Pantheon Mail

Pantheon Mail is a free open source email client forked by the elementary OS community from Geary...

Free Open Source Linux elementary OS
Multiple Account support Add a feature

8 Like
Nitro

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...
- Discontinued Latest commit d44b5db on Mar 29, 2014: https://github.com/CaffeinatedCode/nitro
Free Open Source Mac Linux Web
No features added Add a feature

25 Like