A simple and elegant open source notes app

Spaced Repetition, Flash Cards.

Note-Taking that Grows as You Do

Build your personal knowledge base with Trilium Notes - zadam/trilium

VCRecur is a simple service that handles the automation of resetting subtasks of recurring tasks in Todoist.

Being always well organised is possible. Akiflow makes it 10x faster to keep your schedule under control.

Get started today, it's free.

GoodNotes transforms your iPad into digital paper. It's a single place for all your handwritten notes and formerly paper-based information.

Add notes to applications, folders, documents and websites

Athens is a private, open-source tool for researchers solving our toughest problems. Link thoughts, reference key observations, and network your knowledge using an intuitive outliner.

Jopli website

A powerful Markdown editor for researchers and journalists.

A privacy-first, open-source platform for knowledge management and collaboration.

Obsidian – A knowledge base that works on local Markdown files.

Standard Notes is a private notes app that features unmatched simplicity, end-to-end encryption, powerful extensions, and open-source applications.

POLAR - Read. Learn. Never Forget. Polar is a reading tool for networked knowledge. Use it to effortlessly annotate, highlight, and track your reading progress.

Powerful notes app for individuals and teams. Fast, focused, always in sync. Available on Mac, PC, iOS, Android, and the web. Sign up free.

The safe way to remember everything. Take all your important data with you.

A windows notes app for organizing your thoughts and ideas

As easy to use as a word document or bulleted list, and as powerful for finding, collecting, and connecting related ideas as a graph database. Collaborate with others in real time, or store all your data locally.

Toodledo is a popular and powerful online productivity tool. Manage your to-do list, take notes, track habits, and organize ideas into outlines and lists.

Open-source, privacy-friendly to-do lists & reminders for Android. Supports Google Tasks, DAVx⁵, CalDAV, EteSync, and DecSync CC