# macdownapp/macdown

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9,688 stars · 1,106 forks · Rich Text Format

## Links

- GitHub: https://github.com/MacDownApp/macdown
- Homepage: https://macdown.uranusjr.com/
- awesome-repositories: https://awesome-repositories.com/repository/macdownapp-macdown.md

## Topics

`cocoa` `macos` `markdown` `markdown-converter` `markdown-convertor` `markdown-editor` `markdown-to-html` `markdown-viewer` `markdown-writer` `objective-c` `xcode`

## Description

Macdown is a markdown text editor and HTML renderer designed for structured document composition. It provides a workspace for writing in lightweight markup syntax while simultaneously generating a live HTML preview of the rendered output.

The editor distinguishes itself through a programmable interface, offering a command line utility to open files or pipe text directly into the application. It further supports extensibility via a plugin system that allows for the addition of custom features and functional modules at runtime.

The application handles technical documentation requirements including mathematical notation, syntax-highlighted code blocks, and the visualization of Graphviz and Mermaid diagrams. It also supports exporting content as responsive HTML and monitors the file system to synchronize changes made by external editors.

## Tags

### Part of an Awesome List

- [Document And Writing](https://awesome-repositories.com/f/awesome-lists/productivity/document-and-writing.md) — Provides a specialized environment for drafting structured markdown documents with live rendering. ([source](http://macdown.uranusjr.com/))
- [Document Editors](https://awesome-repositories.com/f/awesome-lists/productivity/document-editors.md) — Markdown editor tailored for macOS.
- [Notes and Writing](https://awesome-repositories.com/f/awesome-lists/productivity/notes-and-writing.md) — A Markdown editor for macOS.

### Content Management & Publishing

- [Markdown Editors](https://awesome-repositories.com/f/content-management-publishing/markdown-editors.md) — Provides a comprehensive workspace for writing and formatting documents using lightweight markdown syntax. ([source](https://macdown.uranusjr.com/))
- [Markdown Authoring Environments](https://awesome-repositories.com/f/content-management-publishing/authoring-editorial-interfaces/content-authoring-editing/document-authoring-tools/markdown-authoring-environments.md) — Provides a workspace for creating structured documents using lightweight markdown syntax.
- [Technical Documentation Editors](https://awesome-repositories.com/f/content-management-publishing/content-management-systems/content-architecture-modeling/documentation-tooling/authoring-editing/technical-writing-tools/technical-documentation-editors.md) — Provides specialized features for technical documentation, including math notation and diagrams.
- [Markdown to HTML Converters](https://awesome-repositories.com/f/content-management-publishing/markdown-to-html-converters.md) — Transforms markdown plaintext into a live HTML preview for structured document composition. ([source](https://macdown.uranusjr.com/features/))

### Business & Productivity Software

- [Extensible Markup Editors](https://awesome-repositories.com/f/business-productivity-software/extensible-markup-editors.md) — Provides a workspace for drafting structured content with support for third-party plugins and syntax highlighting.
- [Graph Visualizers](https://awesome-repositories.com/f/business-productivity-software/knowledge-management-systems/community-knowledge-bases/knowledge-base-visualizers/graph-visualizers.md) — Renders text-based Graphviz and Mermaid definitions as visual diagrams.

### Development Tools & Productivity

- [Programmable Interfaces](https://awesome-repositories.com/f/development-tools-productivity/text-editors/programmable-interfaces.md) — Includes a command line interface and scripting support to automate document management and editor workflows.
- [CLI File Input Handlers](https://awesome-repositories.com/f/development-tools-productivity/cli-file-input-handlers.md) — Provides a command-line interface for opening files and piping raw text directly into documents. ([source](https://macdown.uranusjr.com/history/))
- [Command Line Interfaces](https://awesome-repositories.com/f/development-tools-productivity/command-line-interfaces.md) — Exposes a command-line interface to open files and interact with the application from the terminal.
- [Command Line Utilities](https://awesome-repositories.com/f/development-tools-productivity/command-line-utilities.md) — Offers command-line utilities for managing files and performing document operations from the terminal. ([source](https://macdown.uranusjr.com/history/stable/))
- [Editor Automation Interfaces](https://awesome-repositories.com/f/development-tools-productivity/editor-automation-interfaces.md) — Exposes a CLI and scripting interface to programmatically open files and automate text editing.
- [Syntax Highlighters](https://awesome-repositories.com/f/development-tools-productivity/syntax-highlighters.md) — Implements color-coded syntax highlighting for code blocks to improve readability. ([source](https://macdown.uranusjr.com/features/))

### Programming Languages & Runtimes

- [Electron Runtimes](https://awesome-repositories.com/f/programming-languages-runtimes/electron-runtimes.md) — Built as a cross-platform desktop application using the Electron framework.

### User Interface & Experience

- [Live Preview Renderers](https://awesome-repositories.com/f/user-interface-experience/live-preview-renderers.md) — Renders a real-time HTML preview of markdown content using a WebKit-based web view component.
- [Regex-Based Highlighting](https://awesome-repositories.com/f/user-interface-experience/syntax-highlighters/regex-based-highlighting.md) — Applies visual styling to code blocks using regular expressions to match language-specific grammar rules.

### Web Development

- [Electron Application Examples](https://awesome-repositories.com/f/web-development/electron-application-examples.md) — Utilizes an Electron-based runtime to combine web technologies with native operating system interfaces.

### DevOps & Infrastructure

- [Plugin Extensibility](https://awesome-repositories.com/f/devops-infrastructure/release-automation/plugin-extensibility.md) — Supports a plugin system for adding custom features and functional modules at runtime.

### Graphics & Multimedia

- [Diagram Renderers](https://awesome-repositories.com/f/graphics-multimedia/diagram-renderers.md) — Transforms text-based Graphviz and Mermaid definitions into visual diagrams within the document preview.
- [Diagramming Engines](https://awesome-repositories.com/f/graphics-multimedia/visualization-mapping/diagramming-engines.md) — Converts text-based graph definitions into visual diagrams in the live preview. ([source](https://macdown.uranusjr.com/history/))
- [Automatic Diagram Renderers](https://awesome-repositories.com/f/graphics-multimedia/visualization-mapping/visualization-frameworks/automatic-diagram-renderers.md) — Renders Graphviz graph definitions as visual elements within the document preview. ([source](https://macdown.uranusjr.com/history/stable/))

### Software Engineering & Architecture

- [Mathematical Notation Rendering](https://awesome-repositories.com/f/software-engineering-architecture/expression-transformers/notation-converters/mathematical-notation-rendering.md) — Displays formulas and equations by converting TeX-like math syntax into visual notation. ([source](https://macdown.uranusjr.com/features/))
- [Editor Capability Extensions](https://awesome-repositories.com/f/software-engineering-architecture/integration-extensibility/extensibility/plugin-architectures/developer-authoring-interfaces/custom-module-implementations/module-functionality-extenders/editor-capability-extensions.md) — Allows the installation of plugin bundles to add specialized behaviors and functional tools to the editor. ([source](https://macdown.uranusjr.com/history/stable/))
- [Plugin-Based Architectures](https://awesome-repositories.com/f/software-engineering-architecture/software-architecture/architectural-patterns/plugin-module-systems/modular-plugin-architectures/plugin-based-architectures.md) — Supports an extensible architecture that allows loading external plugin bundles to add custom editor features.

### System Administration & Monitoring

- [File System Monitors](https://awesome-repositories.com/f/system-administration-monitoring/file-system-monitors.md) — Monitors the file system for external modifications to trigger automatic content refreshes in the editor.