Open Source Markdown Projects
Markdown is a lightweight markup language for formatting plain-text documents with simple conventions for headings, links, lists, code, and other elements. It makes content readable without special software while allowing it to be converted into web pages, documentation, notes, and other formats. This helps writers and developers create portable content that is easy to edit, version, and share.
36 repositories · updated October 6, 2026
zennotes: Manage Markdown Notes with Keyboard-First Tools
ZenNotes is a local-first Markdown notes app for people who prefer plain files, keyboard navigation, and Vim motions. It runs as an Electron desktop app or a self-hosted web app, with search, diagrams, CLI, and MCP integrations.
lat.md: Keep Codebase Knowledge in a Linked Markdown Graph
lat.md is a TypeScript CLI and markdown-based knowledge graph for documenting codebase concepts and linking them to source code. It helps coding agents and developers find context, keep references consistent, and retain decisions across work sessions.
skills: Improve Interfaces with Agent Skills
A collection of agent skills for improving interface design, covering UI, typography, color, accessibility, layout, and product writing. Useful for designers and developers who want targeted reviews and iteration support inside an AI-assisted workflow.
ai-memory: Share Long-Term Memory Across Coding Agents
ai-memory captures coding-agent activity in a self-hosted, git-backed Markdown wiki, so work and handoffs can continue across agents, machines, and teammates. It supports retrieval and basic operation without requiring LLM API calls.
karpathy-llm-wiki: Build a Citation-Based LLM Knowledge Wiki
An Agent Skills-compatible workflow that turns source material into a maintained Markdown wiki for coding agents. Use it when you want durable, cross-linked knowledge and cited answers rather than retrieving raw documents for every question.
mdx-a2ui: Convert MDX to A2UI JSON
mdx-a2ui converts prose and approved components in MDX into A2UI JSON without evaluating the source. It is an experimental option for agents or tools that author MDX but need structured output for A2UI renderers.
mistune: Parse Markdown in Python
Mistune is a Python library for converting Markdown to HTML, with configurable renderers and plugins. It suits applications that need Markdown processing in Python and want to extend parsing or output behavior.
markdown: Convert Markdown Text to HTML in Python
Python-Markdown converts Markdown text into HTML and supports extensions for additional syntax and behavior. It suits Python applications that need a configurable Markdown-to-HTML library rather than a standalone editor.
mkdocs: Build Project Documentation Sites from Markdown
MkDocs turns Markdown files into static documentation sites, configured with a YAML file. It suits teams and maintainers who want to publish versioned project guides without building a documentation system from scratch.
makesite: Generate Static Websites with Simple Python
makesite is a small Python static site generator designed for developers who want to understand and customize the generation code themselves. It builds pages, blog listings, and RSS feeds from local content and templates.
pdf-inspector: Classify PDFs and Extract Text as Markdown
pdf-inspector is a Rust library and set of bindings for classifying PDFs, extracting positioned text, and converting documents to Markdown. It helps processing pipelines route scanned pages to OCR while handling text-based pages locally.
Athena-Public: Keep AI Coding Agent Context Across Sessions
Project Athena stores coding context in Markdown on your disk and uses a session routine to carry it forward between AI coding sessions. It suits developers who switch IDEs or models and want to keep their project memory portable.