Freemium

Evernote is a note taking application which keeps the notes taken in sync across all platforms using its cloud infrastructure.

Zim

Open Source

Zim is a graphical text editor used to maintain a collection of wiki pages.

Tomboy

Open Source

Tomboy is a desktop note-taking application for Linux, Unix, Windows, and Mac OS X.

RedNotebook

Open Source

RedNotebook is an open source diary and journal software for Linux, Windows and Mac.

WizNote

Freemium

WizNote is a cross-platform cloud based note-taking client.

Leanote

Open Source

Leanote is a self-hosted note taking app.

QOwnNotes

Open Source

QOwnNotes is a free open source (GPL) plain-text notepad with markdown support and todo list manager for GNU/Linux, MacOS and Windows, that (optionally) works…

Elephant

Open Source

Elephant is a notetaker with a classic interface.

Microsoft OneNote

Freemium

Microsoft OneNote is a digital note taking and sharing app from Microsoft.

Simplenote

Open Source

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

NixNote

Open Source

NixNote is an open source client for Evernote.

KeepNote

Open Source

KeepNote is a note-taking and organization. KeepNote is a note taking application that works on Windows, Linux, and MacOS X.

nvALT

Open Source

nvALT 2 is a fork of the original Notational Velocity with some additional features and interface modifications, including MultiMarkdown functionality.