Tools: Notetaking and Journaling

CryptPad (free and paid options)
Open source, zero knowledge, encrypted, collaborative real-time text editing. Applications include: CryptDrive, Rich text, Code, Presentation, Poll, Kanban, Whiteboard, Todo, Sheet (in beta as of June 2019). Free users can access all the applications.

Dendron (free)
This is an open-source, local-first, markdown-based, note-taking tool built on top of VSCode. Like most such tools, Dendron supports all the usual features you would expect like tagging, backlinks, a graph view, split panes, and so forth.

Etherpad (free)
Highly customizable Open Source online editor providing collaborative editing in real-time.

Evernote (free and paid options)
Note organization tool with document scanning, web clipper, sync between devices, app integration, and more.

Joplin (free and paid options)
Open source note-taking app. Capture your thoughts and securely access them from any device

Keynote NF (free)
Tabbed notebook with RichText editor, multi-level notes and strong encryption.

MorningPages – Daily Journal (free and in-app purchases)
Simple diary & emotion tracker – for Apple products.

Notepad++ (free)
Notepad++ is a free source code editor and tabbed Notepad replacement that supports several languages.

Notezilla (free and paid options)
A sticky notes app for Windows. It lets you create digital sticky notes (like 3M Post-It® Notes) on your Windows desktop, set reminders to them, organize them in folders & also access them from your smartphone such as iOS (iPhone/iPad), Android, Windows Phone, Nokia, Blackberry etc.

OmniFocus (paid/free trial)
OmniFocus is powerful task management software for busy professionals. For Mac.

Outline (free)
A free service for reading and annotating articles without distractions.

Roam (paid options)
A note-taking tool for networked thought. As easy to use as a document. As powerful as a graph database. Roam helps you organize your research for the long haul.

Zoho Note Taking (free)
Truly the best looking app for notetaking, but also the most versatile. Allows notes to be text, checklists, audio, photos, files, and sketches.