HedgeDoc (formerly known as CodiMD) is an open-source, web-based, self-hosted, collaborative markdown editor.
HackMD: Your Collaborative Markdown Workspace for Knowledge Sharing
HackMD gives you a real-time Markdown editor for collaborative work. Working with Markdown files in HackMD is simple, straightforward, and fun.
Own the source. Compose with anything. - The Way of Markdown
Websites, knowledge bases, blogs, even a Notion replacement — built from plain text files you own, with tools you can swap anytime. Markdown is quietly everywhere; here's the way to make it work for you.
Markdown | Codecademy
Markdown is a lightweight markup language for creating formatted text using a plain-text editor.
Publish Markdown as a Website — Blogs, Docs & Knowledge Bases | Flowershow - Flowershow — Publish Markdown as a Website
Turn markdown files into beautiful websites in seconds. Publish Obsidian vaults, blogs, docs, and knowledge bases — free, no coding required.
Build optimized websites quickly, focus on your content | Docusaurus
An optimized site generator in React. Docusaurus helps you to move fast and write content. Build documentation websites, blogs, marketing pages, and more.
Forgejo – Beyond coding. We forge.
Forgejo is a self-hosted lightweight software forge. Easy to install and low maintenance, it just does the job.
Jared Goering on Twitter / X
Saw this and immediately built it. Open-sourced the whole thing:Ingest URLs, PDFs, tweets, images → LLM compiles a linked markdown wiki → Q&A with citations, knowledge graph, contradiction linting, auto-research, export to HTML/PDF/slides.Been using it nonstop as a personal… https://t.co/ypaXlEA7pn pic.twitter.com/8Z2DLAyQjH— Jared Goering (@jaredgoering) April 4, 2026
HackMD & Obsidian: The ultimate markdown workflow - HackMD
Limiting yourself to a single markdown tool might restrict your productivity and workflow. Discover how combining the strengths of top markdown editors, HackMD and Obsidian, can enhance your projects and speed up your feedback process.
outl — local-first markdown outliner & LLM second brain
Open-source bullet-point outliner. Plain markdown on disk (no UUIDs), peer-to-peer tree-CRDT sync that doesn't lose data when devices edit offline — your devices talk straight to each other, end-to-end encrypted, no cloud or third-party server holding your notes — and an MCP server so Claude, Cursor and ChatGPT use your notes as a second brain. A modern Roam, Logseq and Obsidian alternative built in Rust.
jack on Twitter / X
i now spend 2-3 hours per day reading research papers and building something with goose that i didn't think it capable of doing. i never see a line of code, and never trapped in an IDE.it works nearly every time, but does requires some nudging every now and then. incredible.— jack (@jack) June 4, 2025
Hyperlink Academy
It's a lightweight collaborative publishing tool for quick tiny docs that can grow into rich creative surfaces ✨🌱
Introducing Tolaria 💧
A free & open source macOS app for managing markdown knowledge bases.
Rails Conf 2012 Keynote: Simplicity Matters by Rich Hickey
FujoCoded LLC – A Better Web, Together
Empowering fujoshi and other online subcultures to shape their web through software, education, and community collaboration.
Quarkdown | Markdown with superpowers
Quarkdown is a modern, open-source, Markdown-based typesetting system for creating papers, presentations, knowledge bases and static websites.
AFFiNE — Open-Source Knowledge Base Software
AFFiNE is the open-source Notion & Miro alternative — combining docs, whiteboards, databases, and AI in one local-first workspace. Free for teams.
