Joplin - the secure note taking and to-do app with synchronisation capabilities for Windows, macOS, Linux, Android and iOS.

draw.io is a JavaScript, client-side editor for general diagramming.

An open source, lightweight note-taking service. Easily capture and share your great thoughts.

Build your personal knowledge base with Trilium Notes

A web-based collaborative LaTeX editor

🛏 An HTML to Markdown converter written in JavaScript

Think fearlessly with end-to-end encrypted notes and files. For issues, visit https://standardnotes.com/forum or https://standardnotes.com/help.

HedgeDoc - Ideas grow better together

Automate code & data workflows with interactive Elixir notebooks

A simple command line notebook for programmers

A self-hosted, database-less note taking web app that utilises a flat folder of markdown files for storage.

Writing is a lightweight distraction-free text editor, in the browser (Markdown and LaTeX supported).

Minimalist Web Notepad

An open source self hosted notes and bookmarks taking web app.

Command line Kiwix tools: kiwix-serve, kiwix-manage, ...

Meemo - Your personal notes

Note Mark is a lighting fast and minimal; web-based Markdown notes app.

📓 Plainpad - Self Hosted Note Taking App

Encrypted Diary Web-App

A simple wiki engine written in Perl. No database required.