Browse free open source JavaScript Markdown Editors and projects below. Use the toggles on the left to filter open source JavaScript Markdown Editors by OS, license, language, programming language, and project status.

  • MicroStation by Bentley Systems is the trusted computer-aided design (CAD) software built specifically for infrastructure design. Icon
    MicroStation by Bentley Systems is the trusted computer-aided design (CAD) software built specifically for infrastructure design.

    Microstation enables architects, engineers, and designers to create precise 2D and 3D drawings that bring complex projects to life.

    MicroStation is the only computer-aided design software for infrastructure design, helping architects and engineers like you bring their vision to life, present their designs to their clients, and deliver their projects to the community.
    Learn More
  • Iris Powered By Generali - Iris puts your customer in control of their identity. Icon
    Iris Powered By Generali - Iris puts your customer in control of their identity.

    Increase customer and employee retention by offering Onwatch identity protection today.

    Iris Identity Protection API sends identity monitoring and alerts data into your existing digital environment – an ideal solution for businesses that are looking to offer their customers identity protection services without having to build a new product or app from scratch.
    Learn More
  • 1
    MarkText

    MarkText

    A simple and elegant markdown editor

    MarkText is an MIT licensed open source project, and the latest version will always be downloadable for free from the GitHub release page. MarkText is still in development, and its development is inseparable from all sponsors. Realtime preview (WYSIWYG) and a clean and simple interface to get a distraction-free writing experience. Support CommonMark Spec, GitHub Flavored Markdown Spec and selective support Pandoc markdown. Markdown extensions such as math expressions (KaTeX), front matter and emojis. Support paragraphs and inline style shortcuts to improve your writing efficiency. Output HTML and PDF files. Various themes: Cadmium Light, Material Dark etc. Various editing modes: Source Code mode, Typewriter mode, Focus mode. Paste images directly from clipboard.
    Downloads: 217 This Week
    Last Update:
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  • 2
    Markdown Viewer

    Markdown Viewer

    Markdown Viewer / Browser Extension

    Markdown Viewer and Browser Extension.
    Downloads: 17 This Week
    Last Update:
    See Project
  • 3
    Markdown PDF

    Markdown PDF

    Markdown converter for Visual Studio Code

    This extension converts Markdown files to PDF, HTML, PNG or JPEG files.
    Downloads: 16 This Week
    Last Update:
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  • 4
    StackEdit

    StackEdit

    In-browser Markdown editor

    Unrivalled writing experience. StackEdit’s Markdown syntax highlighting is unique. The refined text formatting of the editor helps you visualize the final rendering of your files. StackEdit provides very handy formatting buttons and shortcuts, thanks to PageDown, the WYSIWYG-style Markdown editor used by Stack Overflow. Whether you write, you review, you comment… StackEdit's layout provides you with the flexibility you need, without sacrifice. StackEdit’s Scroll Sync feature accurately binds the scrollbars of the editor panel and the preview panel to ensure that you always keep an eye on the output while writing. StackEdit can sync your files with Google Drive, Dropbox and GitHub. It can also publish them as blog posts to Blogger, WordPress and Zendesk. You can choose whether to upload in Markdown format, HTML, or to format the output using the Handlebars template engine.
    Downloads: 14 This Week
    Last Update:
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  • SoftCo: Enterprise Invoice and P2P Automation Software Icon
    SoftCo: Enterprise Invoice and P2P Automation Software

    For companies that process over 20,000 invoices per year

    SoftCo Accounts Payable Automation processes all PO and non-PO supplier invoices electronically from capture and matching through to invoice approval and query management. SoftCoAP delivers unparalleled touchless automation by embedding AI across matching, coding, routing, and exception handling to minimize the number of supplier invoices requiring manual intervention. The result is 89% processing savings, supported by a context-aware AI Assistant that helps users understand exceptions, answer questions, and take the right action faster.
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  • 5
    The Homebrewery

    The Homebrewery

    Create authentic looking D&D homebrews using only markdown

    The Homebrewery is a tool for making authentic-looking D&D content using Markdown. It is distributed under the terms of the MIT License.
    Downloads: 10 This Week
    Last Update:
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  • 6
    MDX

    MDX

    Markdown for the component era

    MDX lets you use JSX in your markdown content. You can import components, such as interactive charts or alerts, and embed them within your content. This makes writing long-form content with components a blast.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 7
    Markdown

    Markdown

    WeChat Markdown Editor

    WeChat Markdown Editor | A highly concise WeChat Markdown editor, that supports Markdown syntax, color palette selection, multi-image upload, one-click document download, custom CSS style, one-click reset, and other features. Markdown documents are automatically rendered into WeChat graphics and text in real-time, so you no longer have to worry about the typesetting of WeChat articles! As long as you know the basic Markdown syntax, you can make a simple and beautiful WeChat graphic. Chrome browser is recommended for best results. In addition, for domestic (China) friends, accessing Gitee Pages will be relatively faster. The existing open-source WeChat Markdown editor has complicated styles and does not meet my personal aesthetic needs. When I use them for article typesetting, I often have to make some changes myself, which is time-consuming and labor-intensive, so I did secondary development.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 8
    Marpit

    Marpit

    The skinny framework for creating slide deck from Markdown

    Marpit /mɑːrpɪt/ is the skinny framework for creating slide deck from Markdown. It can transform Markdown and CSS theme(s) to slide deck composed of static HTML and CSS and create a web page convertible into slide PDF by printing. Marpit is designed to output minimum assets for the slide deck. You can use the bare assets as a logicless slide deck, but mainly we expect to integrate output with other tools and applications.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 9
    Laverna

    Laverna

    JavaScript note taking application with Markdown editor

    Laverna has a simple and robust markdown editor, which can help you write faster than ever before with our live markdown preview. The editor can be switched to distraction free mode where you can focus solely on writing notes. Make your notes available on any device with your Dropbox & RemoteStorage account. You can make your notes available only to you by enabling encryption. Keep simple to do lists organized in notes and notebooks. You can manage your notes without ever lifting your hands from your keyboard. Keep snippets of code to have access to them anytime and anywhere. Do you prefer to stay anonymous? You do not need to go through registration process to start using Laverna. You can export your notes from Laverna and import them back anytime. You are not tied to using it forever. Every line of code can be reviewed on GitHub and is available under MPL-2.0 license.
    Downloads: 5 This Week
    Last Update:
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  • The Most Powerful Software Platform for EHSQ and ESG Management Icon
    The Most Powerful Software Platform for EHSQ and ESG Management

    Addresses the needs of small businesses and large global organizations with thousands of users in multiple locations.

    Choose from a complete set of software solutions across EHSQ that address all aspects of top performing Environmental, Health and Safety, and Quality management programs.
    Learn More
  • 10
    Metalsmith

    Metalsmith

    An extremely simple, pluggable static site generator for Node.js

    An extremely simple, pluggable static site generator for NodeJS. Metalsmith works with all the tools and data formats you already know and use: NodeJS, npm, markdown, json, yaml and the templating language of your choice. Metalsmith translates a directory tree to plain Javascript objects that you can manipulate effortlessly with your selection of plugins. You shouldn't have to bend your project needs to a specific framework or tool. Metalsmith gives you full control of how you want to conceptualize, structure, and build your project. Use Metalsmith to generate anything from a static site to a scaffolder, backup, command line, or deploy tool. Configuration over code or code over configuration: Metalsmith supports both.
    Downloads: 5 This Week
    Last Update:
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  • 11
    Dillinger

    Dillinger

    The last Markdown editor, ever

    Dillinger is a cloud-enabled, mobile-ready, offline-storage compatible, AngularJS-powered HTML5 Markdown editor. Markdown is a lightweight markup language based on the formatting conventions that people naturally use in email. The overriding design goal for Markdown's formatting syntax is to make it as readable as possible. The idea is that a Markdown-formatted document should be publishable as-is, as plain text, without looking like it's been marked up with tags or formatting instructions. Dillinger uses a number of open source projects to work properly. Dillinger uses Gulp + Webpack for fast developing. Make a change in your file and instantaneously see your updates! Dillinger is very easy to install and deploy in a Docker container.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    react-markdown

    react-markdown

    Markdown component for React

    React component to render markdown. This package is a React component that can be given a string of markdown that it’ll safely render to React elements. You can pass plugins to change how markdown is transformed and pass components that will be used instead of normal HTML elements.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    Smaug

    Smaug

    Archive your Twitter/X bookmarks to markdown

    Smaug is a developer tool for archiving Twitter (X) bookmarks — and optionally likes — into markdown files in an automated way, offering a simple means of preserving social media content in human-readable, version-controlled text. Named after the treasure-hoarding dragon, it uses the Twitter API (or community tools like the bird CLI) to fetch bookmarked posts and outputs them in markdown, making it easy to back up content for future reference or documentation. Smaug is designed for automation and integration into personal workflows, allowing users to run setup and export jobs from the command line with minimal configuration. It supports configuration through JSON and can be extended or scripted as part of broader personal knowledge management systems. Because the output is plain markdown, it fits well with static site generators and digital gardens — preserving links, text, and metadata in a format that’s both platform-independent and version-friendly.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    Markdownify

    Markdownify

    A minimal Markdown editor desktop app

    Make changes, See changes. Instantly see what your Markdown documents look like in HTML as you create them. While you type, LivePreview will automatically scroll to the current location you're editing. The good old GitHub Flavored-style Markdown. So, you don't feel out of the place. Syntax highlighting in fenced code blocks with language identifiers and Markup languages. Change the color scheme of the editor based on your preferences. i.e to choose between Dark mode/Light mode. Supports emojis in the preview mode for when you need to express yourself via one. To clone and run this application, you'll need Git and Node.js (which comes with npm) installed on your computer. Markdowinfy is built using Electron, Node.js, and some more awesome software packages.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    DOCX Document Converter

    DOCX Document Converter

    Convert .docx to .md/.txt and .html. Free, unlimited, fast.

    A simple, free, unlimited, secure web-based tool that converts Microsoft Word documents (.docx) into Markdown (.md/.txt) and HTML files. Perfect for developers, writers, and anyone who needs to transform .docx MS Office Word documents into web-friendly or AI context friendly formats. Unlike those other jerks on the web that charge many dollars per month for this, I made it free, unlimited and open source. This is a better version of 'convert docx to txt' since .md files can be opened in notepad++ just the same AND they preserve formatting too! Meanwhile HTML files will even embed images allowing you to view them just like they were in the original document.
    Downloads: 11 This Week
    Last Update:
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  • 16
    kodeWeave

    kodeWeave

    HTML/CSS/JS and Markdown Playground For Web Designers and Developers

    kodeWeave is a realtime coding playground for HTML, CSS and Javascript. Similar to JSFiddle and JSBin, but kodeWeave was made to work offline but also as a prototyping application to build applications for desktop operating systems while on mobile devices. (PhoneGap Build is recommended for mobile devices) kodeWeave similar to jsfiddle, jsbin, dabblet, liveweave, codepen, cssdeck, cssdesk, tinkerbin, d3 playground, plunker and pastebin, but allows you to export your web app as a desktop and/or chrome application.
    Downloads: 3 This Week
    Last Update:
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  • 17
    Obsidian MEDILIG

    Obsidian MEDILIG

    Obsidian MEDILIG (Medical Life Guard) App Local-First Offline-First

    Obsidian MEDILIG (Medical Life Guard): An easy-to-use, flexible, secure, cross-platform medical knowledge management system for patient's Electronic Health Record (EHR) that is built on top of Obsidian software application for the design, implementation and use of autonomous, multilingual, clinical documents from primary care to continuing care.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 18
    (Un)colored

    (Un)colored

    Next generation desktop rich content editor that saves documents

    The next-generation desktop-rich content editor that saves documents with themes. HTML & Markdown compatible. For Windows, OS X & Linux. The main idea of (Un)colored is to focus on what you write. There are no distracting elements like multiple indicators & toolbars. When you're writing, the only things you see are your content, the caret, and your cursor. The toolbar appears when you select a portion of text, documents tabs & main menu when you move your cursor at the top of the window. Simple as that. (Un)colored includes classic & standard word processor tools like Bold, Italic, Links, etc., but also Web-oriented tools like videos from YouTube, Vimeo, Dailymotion, and even Twitch livestreams. You can even include any type of embed content to your documents like SoundCloud tracks, Facebook posts, etc. thanks to the Embed Content tool.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    BoostNote Legacy

    BoostNote Legacy

    Real-time collaborative writing

    Note-taking app for programmers. App is available for Mac, Windows and Linux. Built with Electron, React + Redux, Webpack, and CSS modules. Write overviews of systems including concepts, terminology definitions and descriptions of how these concepts work together. Having a 'living document' to help drive dialogue and exchange of ideas through collaboration helps this process significantly. It’s time to aggregate your knowledge in a single place. Build a team-wide knowledge management system to solve the information silos. Organize your dev team's sprint backlog and visualize them with status, assignees, reviewers, due date and everything you need. Reduce repeated progress updates in the company chat and standup meetings. Collaborate with your teammates in a doc with Boost Note's real-time editing. Boost Note's editor makes it easy to write a tech spec with Charts.js, Mermaid, Latex, PlantUML and so on.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Civilizer

    Civilizer

    Civilizer - Tool to efficiently manage your data/knowledge/idea

    Civiilzer is a Dedicated Personal Knowledge Management Tool built by Java. You can use it for purposes such as a high level note application, document store, information hub, etc. With Civilzer's Markdown editor, you can edit text in Markdown format, but the editor provides a lot more additional features, so you can edit your content in a more stylish fashion. You can structure and organize your data with tagging, relating, bookmarking. Civilizer's full text search functionality is simple but powerful. You can search with simple space separated keywords as other tools, but unique Civilizer Search Operators can boost your search ability a lot further. Your search phrase can be fine-tuned as far as you can go. Another useful feature is its multi-panel view. It helps you view multiple data in the same screen eliminating the need to jump across separate pages. Also Civilizer has its own file system. You can store any file with Civilizer and link files to Civilizer's regular data.
    Downloads: 0 This Week
    Last Update:
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  • 21
    CodiMD

    CodiMD

    Realtime collaborative markdown notes on all platforms

    CodiMD lets you collaborate in real-time with markdown. Built on HackMD source code, CodiMD lets you host and control your team's content with speed and ease. HackMD helps developers write better documents and build active communities with open collaboration. HackMD is built with one promise - You own and control all your content.
    Downloads: 0 This Week
    Last Update:
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  • 22
    Editor.md

    Editor.md

    The open source embeddable online markdown editor (component)

    The open source embeddable online markdown editor (component), based on CodeMirror & jQuery & Marked. The available dependents are CodeMirror, marked, jQuery, FontAwesome, github-markdown.css, KaTeX, prettify.js, Rephael.js, flowchart.js, sequence-diagram.js, and Prefixes.scss. You can enable HTML tags decode, TeX, Flowchart, sequence diagram, Emoji, FontAwesome, task lists. You can also enable image upload, [TOCM], search replace features, code fold, etc. Combine multiple JS module files used by CodeMirror to greatly reduce HTTP requests and speed up downloading. In addition, when using Require.js, because of CodeMirror's strict module dependency restrictions, the merged module files cannot be used, and multiple module files are still dynamically loaded. Newly added images, links, anchor links, code blocks, pre-formatted text and other operations pop-up dialog layers and examples.
    Downloads: 0 This Week
    Last Update:
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  • 23
    Flatdoc

    Flatdoc

    Build sites fast from Markdown

    Flatdoc is a tiny JavaScript library that builds a documentation site directly from Markdown files, without requiring a server-side engine or static site generator. Point it at a Markdown source and it fetches, parses, and renders content into a ready-to-browse doc layout in the browser. It autogenerates a navigation sidebar from headings, supports anchors, and provides a clean default theme that’s easy to restyle. Because it runs client-side, it’s great for small projects, GitHub-hosted docs, or internal references where you want “drop-in” documentation with minimal setup. The library’s footprint and API are intentionally modest, making it simple to customize templates, typography, or color schemes. For teams who value instant docs from a README or single Markdown file, Flatdoc remains a practical, dependency-light choice.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Hello Friend

    Hello Friend

    Pretty basic theme for Hugo that covers all of the essentials

    Pretty basic theme for Hugo that covers all of the essentials. All you have to do is start typing.
    Downloads: 0 This Week
    Last Update:
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  • 25
    MDX Deck

    MDX Deck

    React MDX-based presentation decks

    MDX Deck is a presentation framework that allows developers to create interactive slide decks using MDX, a format that combines Markdown with JSX components. It enables users to write presentations as code, integrating text, components, and dynamic content within a single document. The system supports live coding, theming, and customization, making it ideal for technical talks and developer-focused presentations. It leverages React under the hood, allowing users to incorporate interactive elements and reusable components. The framework emphasizes simplicity and flexibility, enabling rapid creation of visually appealing presentations. It also supports exporting and sharing slides easily across platforms. Overall, mdx-deck transforms presentations into programmable, interactive experiences.
    Downloads: 0 This Week
    Last Update:
    See Project
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