HackMD!

Laverna is a JavaScript note-taking web application with a Markdown editor and encryption support. It's built to be an open source alternative to Evernote.

StackEdit is a free, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.

Real-time collaborative text-editor. No account required. Edits highlighted in authors color. Infinite undo history. Copy of the down EtherPad.

Nuclino is the easiest way to organize and share knowledge in teams. Create real-time collaborative documents and connect them instantly like a wiki. Use the tree, board, and graph view to explore and organize your knowledge visually. It's great for meeting notes, product requirements, docs, decisions, and more.

Marp is the simplest presentation writer with Markdown.

Madoko is a fast markdown processor for writing professional articles, books, manuals, webpages and presentations, with a focus on simplicity and plain text readability.

An open source collaborative code and text editor. Share documents and see changes occur in real-time. It uses Firebase for real-time data synchronization

Inkdrop enables hackers to keep track of their daily progress when it comes to hacking in one convenient spot without having to rely on traditional word processors.

Slidium is a next generation Markdown Presentation editor It brings to the simplicity of a Markown editor, all the features you are expecting from a presentation application:- Multiple types of graphs and charts (org chart, mind map)- Integrated support of SVG icons- Multiple thmes and layouts- Automatic code syntax highlighting- PDF Export

Great-looking slides from simple Markdown files. Write down your thoughts in your favourite text editor, and Deckset will turn them into beautiful presentations.

Documize provides an Integrated Document Environment that adapts to the business, making it dead-simple for anyone to compose & contribute content and share knowledge. A single place to compose docs and share know-how, without the mess of email, chat apps and sync folders