BeeCanvas is an online whiteboard based visual collaboration tool.

CherryTree is an hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.

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

Leanote is a self-hosted note taking app.

Nuclino is a cloud-based team collaboration software which allows teams to collaborate and share information in real-time.

OpenNote was built to be an open web-based alternative to Microsoft OneNote (T) and EverNote.

BookStack a platform to create documentation/wiki content built with PHP & Laravel.

Elephant is a notetaker with a classic interface.

Joplin is an open-source free note taking and to-do application.

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

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

Quiver 3D Augmented Reality coloring apps: print, color and see your drawing in beautifully hand-animated 3D worlds.