Laverna is a JavaScript note taking application with Markdown editor and encryption support. Consider it like open source alternative to Evernote.

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

TiddlyWiki is a highly customizable notewiki for capturing, organising and sharing complex information.

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

TagSpaces is a multiplatform application, which allows you to manage and organize your local files with the help of tags.

Choose simplicity, get Cozy. We all have a life and a digital life. Cozy gathers them. In your Cozy, you have all your personal data: pictures, health, bank, holidays, accessible only by you. Welcome to your new digital home.

DEVONthink is a solution to the digital age conundrum. It is your second brain, the one and only database for all your digital files, be they PDFs, emails, Word docs or even multimedia files.

Gorgeous note-taking app for Mac with Evernote integration. Alternote has pixel-perfect interface, robust search, distraction-free mode and lots more.

Store email, contacts, calendars, photos, music, books, apps and more in the cloud and access them on all your devices.

RightNote will help you get a grip on information overload. It is designed to be easy to use for the new-comer, but also provide advanced features once your notes start to accumulate.

The powerful, full-featured Personal Information Manager for Windows offering Email, Synchronization, Portability, Network support, Android and iOS versions.

Next Generation Session, Windows, Tabs Manager and a TooManyTabs Solution That Really Works.

AllMyNotes Organizer is a multi-functional hierarchical information manager for Windows.

The Cloudron platform helps you effortlessly run web apps on your server. Install apps with a single click from the [Cloudron App Store](https://cloudron.io/appstore.html ) and have app updates automatically delivered to your server.

TreeDBNotes is a powerful and easy-to-use personal database program, Word Processor with Tree Structure. User interface in 21 languages available.

A reference management software, used for searching online publication databases, & managing publications / bibliographies, with the ability to insert the references into a word processor.

UV Outliner is a small and powerful single-pane outliner. It is intended for creating, organizing, and collecting information.

Online task management app built by GTD enthusiasts for GTD enthusiasts. Outline style interface supports unlimited levels of sub-projects and tasks. 100% GTD compliant.

iTools is the most efficient & easy-controlled sync & management software for your iPad, iPhone, iPod touch on your PC.

MyTetra is open source and cross platform personal manager for information accumulation. It is powerful program for data memorization and structuring notes.

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 seamlessly integrated into one.

The Guide is a two-pane outliner - a program that allows you to arrange text notes in a tree-like structure. It supports formatted text, exporting to RTF and hyperlinks (both internal and external).

myBase is a unique freeform database software that creates full-text searchable databases and organizes information in the tree-structured outline form, along with capability of capturing information from a variety of data sources such as...

With Memotoo, sync all you want ! Sync and share your personal datas (bookmarks, address book, calendar, files, ...) with Memotoo.com to find them from any computer connected to Internet.

ConnectedText is a powerful but simple information management system. It is based on wiki principles and is a free-form note-taking and note-management application that allows you to keep an unlimited number of notes in one or many files.