Nuclino is a unified workspace where teams can bring all their knowledge, docs, and projects together in one place. It’s a modern, simple, and blazingly fast way to collaborate, without the chaos of files and folders, context switching, or silos.
Zim brings the concept of a wiki to your desktop. Store information, link pages and edit with WYSISYG markup or directly typing some lightweight markup syntax and see it previewed as-you-type. Creating a new page is easy by either clicking on the "Create new note"...
Made by the company behind 
WordPress, Simplenote enables users to take notes, lists, and ideas. These notes are stored on the cloud and are accessible across multiple devices.
Open source note-taking app with Markdown support, to-do integration, and synchronization with cloud services like Dropbox and OneDrive.
End-to-end encrypted note-taking with offline access, unlimited sync across devices, tagging, passcode and biometric security, plus advanced premium privacy features.
Free, open-source note-taking with rich text, cross-platform support, syntax highlighting, embedded files, and customizable interface.
Privacy-focused, cross-platform tool for tagging, browsing and managing files or folders, with note-taking, Kanban, S3 cloud support, and web clipping.
Since its release in 2008, the Adobe AIR runtime has enabled developers to create and deploy Flex, ActionScript and HTML-based content as standalone desktop apps, as well as native iOS and Android apps running on mobile devices since 2010.
