markdown
Start building your knowledge graph. Everything You Know, Connected.
Open source. Self-hosted. Your data stays yours.
A personal knowledge base that turns markdown notes into a semantically-connected, AI-augmented knowledge graph.
Atomic stores knowledge as atoms — markdown notes that are automatically chunked, embedded, tagged, and linked by semantic similarity. Your atoms can be synthesized into wiki articles, explored on a spatial canvas, and queried through an agentic chat interface.
A second brain for the AI era. Free forever.
Organize your notes as Markdown files. With native relationships, Git, and Claude Code integration.
Write documents, dashboards, and slides in a Markdown superset. Add charts, KPI cards, tables, and styled regions with nothing more complicated than fenced code blocks and named styles.
MDV — a Markdown superset for documents, dashboards, and slides with embedded data and visualizations. HTML + PDF export, live preview, VS Code extension.
A lightweight easy to use markdown viewer.
A fast, native markdown viewer for macOS built with Tauri v2, React, and markdown-it. Beautiful rendering of tables, code blocks, task lists, math, and diagrams — with live reload.
The Universal Documentation Engine.
The minimalist, zero-config engine for professional documentation. No React, no heavy frameworks. Generate minimal, fast & beautiful docs from Markdown. No React, no bloat, just content. Built for developers.
Components in Markdown.
A fast, streaming-ready markdown parser with component support for Vue, React, Svelte, HTML and ANSI terminal.
Turns any HTML page into clean markdown.
Mozilla Readability algorithm + hickory-to-markdown converter for Babashka.
Turns any HTML page into clean markdown by parsing it with jsoup, scoring content using the Mozilla Readability algorithm, extracting the main article body, and converting the hickory tree to markdown.
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mini cli search engine for your docs, knowledge bases, meeting notes, whatever. Tracking current sota approaches while being all local.
An on-device search engine for everything you need to remember. Index your markdown notes, meeting transcripts, documentation, and knowledge bases. Search with keywords or natural language. Ideal for your agentic flows.
QMD combines BM25 full-text search, vector semantic search, and LLM re-ranking—all running locally via node-llama-cpp with GGUF models.
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Render markdown into email-safe HTML. Responsive Emails, Written in Markdown. Write markdown. Ship emails. No HTMHELL.
Email.md converts markdown into responsive, email-safe HTML that works across Gmail, Outlook, Apple Mail, Yahoo, and every other client.
Get the main content of any page as Markdown.
Defuddle extracts the main content from web pages. It cleans up web pages by removing clutter like comments, sidebars, headers, footers, and other non-essential elements, leaving only the primary content.
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A self-hosted, database-less note taking web app that utilises a flat folder of markdown files for storage.
Turn an existing markdown-and-diagram workspace into a realtime collaborative web app.
Realtime collaboration for Markdown folders, diagrams, and git-backed docs, without migrating your files.
CollabMD turns a local Markdown folder, Obsidian-style vault, or docs repo into a collaborative workspace you can open in the browser. Throughout this guide, vault simply means a regular folder on your computer that contains Markdown files.
Your private note-taking app.
A self-hosted markdown editor with live preview, document encryption, multi-user support, and multi-organization capabilities.
Transform Terraform Plans Into Readable Reports
Stop drowning in verbose plan output. Generate structured Markdown reports that render perfectly in PR comments.
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Self-hosted, Simple Markdown Web Editor and Notes Organizer.
FrankMD (Frank Markdown) is a simple, feature-rich, self-hosted markdown note-taking app built with Ruby on Rails 8. The name honors Frank Rosenblatt, inventor of the Perceptron - the pioneering neural network that laid the foundation for modern AI.
Create executable demo documents that show and prove an agent's work.
Showboat helps agents build markdown documents that mix commentary, executable code blocks, and captured output. These documents serve as both readable documentation and reproducible proof of work. A verifier can re-execute all code blocks and confirm the outputs still match.
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Reinschrift combines a native GNOME interface with the simplicity of plain text. Your tasks remain a normal Markdown file – easy to back up, versionable via Git, and editable on any device with your favorite editor.
The app syncs the file via Nextcloud/WebDAV, reads changes live, writes directly back, and thus makes classic to-do lists in plain text suitable for everyday use – without proprietary silos. The format remains open, portable, and transparent.
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A Markdown formatter that enforces Hong Minhee's Markdown style conventions.
Hongdown is a Markdown formatter that enforces Hong Minhee's Markdown style conventions. The formatter is implemented in Rust using the Comrak library for parsing. It produces consistently formatted Markdown output following a distinctive style used across multiple projects including Fedify, LogTape, and Optique.
A minimalist text editor that lives in URL.
A minimalist text editor that lives entirely in your browser and stores everything in the URL hash.
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Joplin is an open source note-taking app. Capture your thoughts and securely access them from any device.
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MCP server for converting HTML to Markdown using Turndown.js. Fetch web pages and convert them to clean, formatted Markdown.
An MCP (Model Context Protocol) server that converts HTML content to Markdown format using Turndown.js.
A fast, lightweight text editor for Markdown, JSON, YAML, and TOML files. Built with Rust and egui for a native, responsive experience.
Your One-Stop Publication Workbench
From idea to publication in one app: Zettlr supports your writing process at every stage — from initial notes to journal submission or book manuscript.
Unterminated Block Parsing.
Remend is a lightweight, standalone preprocessor that completes incomplete Markdown syntax.
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If you need to convert files from one markup format into another, pandoc is your swiss-army knife. Pandoc can convert between many formats.
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The Darwin Information Typing Architecture (DITA) specification defines a set of document types for authoring and organizing topic-oriented information, as well as a set of mechanisms for combining, extending, and constraining document types.
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DocBook is a schema (available in several languages including RELAX NG, SGML and XML DTDs, and W3C XML Schema) maintained by the DocBook Technical Committee of OASIS. It is particularly well suited to books and papers about computer hardware and software (though it is by no means limited to these applications).
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reStructuredText (reST) is the default plaintext markup language used by both Docutils and Sphinx. Docutils provides the basic reStructuredText syntax, while Sphinx extends this to support additional functionality.
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Save web pages as Markdown files with preserved formatting. Perfect for documentation, articles, and note-taking.
Save web pages as Markdown files with preserved formatting. Zero setup required - just install and start saving!
A fast, open-source Markdown note-taking app for students and creators.
A modern and elegant application for taking notes in extended Markdown. Organize, search, and export your notes with an intuitive interface designed for students and productivity.
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⚙️ Convert HTML to Markdown. Even works with entire websites and can be extended through rules.
A robust html-to-markdown converter that transforms HTML (even entire websites) into clean, readable Markdown. It supports complex formatting, customizable options, and plugins for full control over the conversion process.
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vault-tasks is a TUI Markdown task manager.
It will parse any Markdown file or vault and display the tasks it contains.
A markdown-like journal language for plainly writing logs , gantt charts , blogs , feeds , notes , journals , diaries , todos , timelines , calendars or anything that happens over time .
Markwhen is a markdown-like journal language. You write markdown-ish text and it gets converted into JSON which can then be rendered into a timeline or other view.
Make clean PDF and EPUB docs from web pages
Percollate lets you turn web pages into readable PDF, EPUB, HTML, or Markdown files from the command line.
Write Markdown with code assist and intelligence in the comfort of your favourite editor.
Marksman is a program that integrates with your editor to assist you in writing and maintaining your Markdown documents. Using LSP protocol it provides completion, goto definition, find references, rename refactoring, diagnostics, and more. In addition to regular Markdown, it also supports wiki-link-style references that enable Zettelkasten-like1, 2 note taking. See more about Marksman's features below.
Daux.io is a documentation generator that uses a simple folder structure and Markdown files to create custom documentation on the fly. It helps you create great looking documentation in a developer friendly way.
Catch Broken Links in Seconds.
⚡ Fast, async, stream-based link checker written in Rust. Finds broken URLs and mail addresses inside Markdown, HTML, reStructuredText, websites and more!
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Beautiful typographic defaults for HTML you don't control.
The official Tailwind CSS Typography plugin provides a set of prose classes you can use to add beautiful typographic defaults to any vanilla HTML you don’t control, like HTML rendered from Markdown, or pulled from a CMS.
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unified is a collective of 500+ free and open source packages that work with content as structured data (ASTs). Different kinds of content can be connected together. Particularly, markdown, natural language, HTML, XML, and JavaScript are frequently used.
Content as structured data.
We compile content to syntax trees and syntax trees to content. We also provide hundreds of packages to work on the trees in between. You can build on the unified collective to make all kinds of interesting things.
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HTML conversion tool to markdown.
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Note Conversion Tool.
Jimmy is a tool to convert your notes from different formats to Markdown.
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Publish presentation-rich content from a concise and comprehensive authoring format.
AsciiDoc is a plain text markup language for writing technical content. It’s packed with semantic elements and equipped with features to modularize and reuse content. AsciiDoc content can be composed using a text editor, managed in a version control system, and published to multiple output formats.
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☁️ Convert any site to clean markdown & llms.txt. Boost your site's AI discoverability or generate LLM context for a project you're working with.
Mdream core is a highly optimized primitive for producing Markdown from HTML that is optimized for LLMs.
A higher order component to wrap react-markdown with support for MDX component elements.
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The Markdown Editor That's a Textarea.
A lightweight markdown editor library with perfect WYSIWYG alignment using an invisible textarea overlay technique. Includes optional toolbar. ~45KB minified with all features.
Simple & Fast Online Markdown Editor with Live Preview. Quickly and easily get started writing your markdown documents with MKEditor's rich set of features.
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A GitHub Action that automatically generates & updates markdown content (like your README.md).
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Export notes from Notes.app
- Notes can be exported to markdown or HTML format.
- Creation & modification dates of notes are preserved.
- Notes are stored in directories named after the notebooks in which they are stored in Notes.app.
- Notes in same notebook having same name are renamed to avoid old notes being re-written by new ones.
- Support for exporting attachments of type - JPEG, PNG, GIF, TIFF & BMP while exporting in markdown format.
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The best dashboards are built with code. Create fast, beautiful data apps, dashboards, and reports from the command line. Write Markdown, JavaScript, SQL, Python, R… and any language you like. Free and open-source.
A static site generator for data apps, dashboards, reports, and more. Observable Framework combines JavaScript on the front-end for interactive graphics with any language on the back-end for data analysis.
Documentation. Zero Clutter. Just Content.
Generate beautiful, lightweight static documentation sites from Markdown files.
Open-source scientific and technical publishing system built on Pandoc. Quarto documents are authored using Markdown, an easy to write plain text format.
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📝A simple and elegant markdown editor, available for Linux, macOS and Windows.
A simple and elegant open-source markdown editor that focused on speed and usability.
📜 Generates table of contents for markdown files inside local git repository. Links are compatible with anchors generated by github or other sites.
Markdown‑native Task Manager & Kanban visualizer for any Git repository.
A tool for managing project collaboration between humans and AI Agents in a git ecosystem.
Backlog.md turns any folder with a Git repo into a self‑contained project board powered by plain Markdown files and a zero‑config CLI.
Simple, Convenient, Markdown based task runner.
xc is a task runner similar to Make or npm run, that aims to be more discoverable and approachable.
The problem xc is intended to solve is scripts maintained separately from their documentation. Often a Makefile or a package.json will contain some useful scripts for developing on a project, then the README.md will surface and describe these scripts. In such a case, since the documentation is separate, it may not be updated when scripts are changed or added. xc aims to solve this by defining the scripts inline with the documentation.
Reflect the web through AI.
Automatically rewrites the websites into markdown optimised for viewing in the terminal. Read intro blog post here This is a proof-of-concept, bugs are to be expected but feel free to raise an issue or pull request.
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Write it Down. Own it Forever.
A clean, quiet space to think. Your notes live in standard Markdown within a local SQLite database. No vendor lock-in, no distractions. Selfhosted notes app. Single golang binary, notes stored as markdown within SQLite, full-text search, very low resource usage
Open Educational Resources made Easy and Decentralized…
Share your knowledge and build online courses with simple LiaScript! LiaScript is an open Markdown dialect and interpreter for interactive and educational content, providing everything you need to jumpstart a journey to engaging OER projects.
Ephemeral Markdown Paper.
Traditional todo apps can be overwhelming. Ephe is designed to organize your tasks with plain Markdown. Ephe gives you just one clean page to focus your day.