GitHub Markdown is the formatting language used across GitHub to create well-structured and readable content.

GitHub uses GitHub Flavored Markdown (GFM), an extension of standard Markdown that adds powerful features like tables, task lists, strikethrough text, automatic URL linking, and syntax-highlighted code blocks.

You'll encounter GitHub Markdown in:

• README.md files
• Repository documentation
• GitHub Wikis
• Issues
• Pull Requests
• Discussions
• Release notes
• Project documentation

Learning GitHub Markdown helps you create professional repositories that are easier to understand and maintain. For a complete syntax reference beyond GitHub-specific features, see the Markdown Syntax guide.

GitHub Flavored Markdown (GFM) is GitHub's extended version of Markdown.

It includes everything available in standard Markdown plus several additional features designed specifically for software documentation and collaboration.

Some popular GFM features include:

• Tables
• Task lists
• Fenced code blocks
• Syntax highlighting
• Automatic URL linking
• Strikethrough text
• Footnotes
• Emoji support
• Heading anchors

Because of these additions, GFM has become the most widely used Markdown implementation on the web.

GitHub Markdown makes documentation easier to write and easier to read.

Benefits include:

• Simple plain-text syntax
• Professional README files
• Easy collaboration
• Version control friendly
• Works across GitHub repositories
• Excellent code formatting
• Mobile-friendly rendering
• Supported by many Markdown editors

Whether you're building an open-source project or maintaining private documentation, GitHub Markdown provides a clean and consistent writing experience.

GitHub Markdown uses a simple plain-text syntax that is easy to learn and works across all GitHub repositories.

Below are the formatting features you'll use most often. Each topic links to a dedicated guide when you need more detail.

Headings

Create headings using the # symbol. See Markdown Headings for hierarchy rules, anchor links, and README structure.

# Heading 1

## Heading 2

### Heading 3

Output

Use headings to organize long README files into clear sections.

Paragraphs

Separate paragraphs with a blank line. See Markdown Paragraphs for spacing and line-break rules.

This is the first paragraph.

This is the second paragraph.

Well-spaced paragraphs improve readability.

Bold and Italic Text

**Bold Text**

*Italic Text*

***Bold and Italic***

Output

These formatting styles help emphasize important information.

Lists

GitHub supports both unordered and ordered lists. See Markdown Lists for nested lists, mixed lists, and task checkboxes.

- Install Node.js
- Clone the repository
- Run the application

1. Install dependencies
2. Configure the project
3. Deploy the application

Lists make installation guides and documentation easier to follow.

Links

Create hyperlinks using Markdown link syntax. See Markdown Links for reference links, relative paths, and email links.

[Visit MDConvertHub](https://mdconverthub.com)

Output

GitHub automatically renders the link as a clickable hyperlink.

Images

Display images using an exclamation mark before the link. See Markdown Images for alt text, GitHub paths, and sizing.

![Project Screenshot](images/screenshot.png)

README files commonly use images for screenshots, logos, architecture diagrams, and feature previews.

Blockquotes

Highlight notes or important information. See Markdown Blockquotes for nesting and GitHub callouts.

> This project requires Node.js 20 or later.

Output

Blockquotes are useful for warnings, tips, and additional notes.

Horizontal Rules

Separate sections using three hyphens. See Markdown Horizontal Rules for ---, ***, and ___ variants.

---

Output

Horizontal rules improve document organization, especially in long README files.

Inline Code

Highlight commands, filenames, variables, or package names.

Run `npm install` before starting the application.

Output

Inline code improves readability for technical documentation.

Fenced Code Blocks

GitHub supports fenced code blocks using triple backticks. See Markdown Code Blocks for language identifiers, syntax highlighting, and copy-friendly examples.

```javascript
function hello() {
  console.log("Hello GitHub!");
}
```

GitHub automatically applies syntax highlighting for supported programming languages.

Code blocks are one of the most widely used features in README files because they make installation steps and code examples much easier to understand.

GitHub Flavored Markdown fully supports tables, making it easy to organize structured information inside README files and documentation.

Tables are commonly used for:

• Feature comparisons
• Installation requirements
• Command references
• API documentation
• Configuration options
• Pricing comparisons
• Project roadmaps

For complete table syntax, alignment, and formatting rules, see the Markdown Tables guide.

| Feature | Supported |
|---------|-----------|
| Tables | ✅ |
| Task Lists | ✅ |
| Code Blocks | ✅ |

Output

GitHub automatically renders Markdown tables into clean HTML tables.

GitHub supports interactive task lists using checkboxes. See Markdown Task Lists for nested checklists, mixed lists, and platform compatibility.

- [x] Create repository
- [x] Add README
- [ ] Write documentation
- [ ] Publish release

Output

Task lists work in:

• README files
• Issues
• Pull Requests
• Discussions
• Project boards

They are widely used for project planning and release tracking.

One of the biggest advantages of GitHub Markdown is automatic syntax highlighting.

Simply specify the programming language after the opening backticks. See Markdown Code Blocks for fenced-block syntax and supported languages.

```python
print("Hello GitHub")
```

GitHub supports syntax highlighting for hundreds of programming languages including:

• JavaScript
• TypeScript
• Python
• Java
• PHP
• Go
• Rust
• C#
• C++
• Bash
• SQL
• JSON
• YAML
• HTML
• CSS

Syntax highlighting makes code easier to read and understand.

GitHub automatically converts plain URLs into clickable links.

https://github.com

Output

You can also create custom links with descriptive text. See Markdown Links for inline, reference, and relative link syntax.

[Visit GitHub](https://github.com)

Output

Custom links usually provide a better user experience than displaying raw URLs.

GitHub supports emoji shortcodes.

:rocket:

:white_check_mark:

:fire:

:tada:

:warning:

Output

Emojis make documentation more engaging and help highlight important information.

GitHub Flavored Markdown supports footnotes. See Markdown Footnotes for numbered and named references, multiple footnotes, and platform compatibility.

Markdown supports references.[^note]

[^note]: GitHub renders footnotes automatically.

Footnotes help keep long documentation clean by moving additional information to the bottom of the page.

GitHub also supports a subset of HTML. See Markdown HTML for supported tags, security restrictions, and advanced formatting.

<details>
<summary>Click to expand</summary>

Hidden documentation goes here.

</details>

Output

The <details> element is widely used in README files for FAQs, installation steps, and advanced documentation.

A professional GitHub README usually contains:

• Project title
• Description
• Features
• Installation guide
• Usage examples
• Screenshots
• Configuration
• Contributing guide
• License
• FAQ
• Contact information

Well-structured README files help users understand your project quickly and improve the overall developer experience.

Use the README Generator to scaffold common sections, then customize the Markdown for your project. A dedicated README Guide is coming soon with full templates and walkthroughs.

Writing good GitHub Markdown is about more than just using the correct syntax. A well-structured README improves readability, helps contributors, and makes your repository look professional.

Use Clear Heading Structure

Organize your documentation with logical headings. See Markdown Headings for hierarchy rules.

# Project Name

## Features

## Installation

## Usage

## License

A consistent hierarchy makes long README files easier to navigate.

Keep README Files Concise

Include the most important information first:

• What the project does
• Why it exists
• How to install it
• Basic usage
• Links to additional documentation

Avoid overwhelming new users with unnecessary details.

Use Code Blocks

Wrap commands and code snippets inside fenced code blocks.

```bash
npm install
npm run dev
```

Syntax highlighting improves readability. See Markdown Code Blocks for language identifiers and copy-friendly formatting.

Add Screenshots

Images help users understand your project faster. See Markdown Images for paths, alt text, and GitHub asset URLs.

Examples include:

• Dashboard screenshots
• CLI output
• Architecture diagrams
• Feature previews

Visual documentation increases engagement.

Use Tables

Tables are ideal for presenting structured information. See Markdown Tables for alignment and formatting.

Examples:

• Feature comparisons
• Browser support
• Configuration options
• API parameters

Keep Task Lists Updated

If you use GitHub task lists, update completed items regularly. See Markdown Task Lists for checkbox syntax.

- [x] Authentication
- [x] Dashboard
- [ ] Notifications

Link Related Documentation

Connect your README to other documentation pages.

Examples:

• Installation Guide
• API Documentation
• Contributing Guide
• Changelog
• License

Internal links improve navigation. Use Markdown Links for relative paths within your repository.

Even experienced developers make small Markdown mistakes that hurt readability or break rendering on GitHub.

Incorrect Heading Order

Avoid skipping heading levels. See Markdown Headings for proper hierarchy.

Incorrect:

# Title

### Section

Correct:

# Title

## Section

### Subsection

Forgetting Language Identifiers

Incorrect:

```
console.log("Hello");
```

Correct:

```javascript
console.log("Hello");
```

Language identifiers enable syntax highlighting. See Markdown Code Blocks for supported languages.

Using Huge Paragraphs

Break long paragraphs into smaller sections. See Markdown Paragraphs for spacing guidance.

Documentation is much easier to read this way.

Missing Alt Text for Images

Instead of:

![](image.png)

Use:

![Project Dashboard](image.png)

Alt text improves accessibility. See Markdown Images for best practices.

Poor README Organization

Avoid publishing a README that only contains code.

A good README should explain:

• What the project does
• Installation
• Usage
• Features
• License
• Contributing

The best way to learn GitHub Markdown is by writing it yourself.

Open the Markdown Editor to experiment with headings, tables, task lists, code blocks, and HTML elements while previewing the rendered output in real time. Keep the Markdown Cheat Sheet nearby for quick syntax lookup.

To scaffold a professional README quickly, use the README Generator — then refine the Markdown with screenshots, tables, and installation steps from this guide.

Try building a README that includes:

• A clear title and description
• An installation section with fenced code blocks
• A feature comparison table
• A release checklist with task lists
• At least one screenshot with alt text

GitHub Markdown is the foundation of documentation across GitHub repositories.

In this guide, you learned:

• What GitHub Markdown is
• GitHub Flavored Markdown (GFM) features
• Basic syntax for headings, lists, links, images, and code
• GitHub tables and task lists
• Syntax highlighting and automatic URL linking
• Emoji support, footnotes, and HTML elements
• README and formatting best practices
• Common mistakes to avoid
• Frequently asked questions

Whether you're creating a professional README, writing project documentation, or contributing to open-source software, mastering GitHub Markdown will help you build documentation that is clean, readable, and easy to maintain.

Continue learning Markdown with these guides:

Available now

• Markdown Basics — core concepts for beginners
• Markdown Cheat Sheet — quick syntax lookup
• Markdown Syntax — complete reference with examples
• Markdown Headings — document structure with H1–H6
• Markdown Paragraphs — blank lines and spacing
• Markdown Lists — ordered, unordered, nested, and task lists
• Markdown Links — inline, reference, and relative links
• Markdown Images — syntax, URLs, alt text, and GitHub paths
• Markdown Tables — syntax, alignment, and GitHub GFM
• Markdown Code Blocks — fenced blocks and syntax highlighting
• Markdown Blockquotes — syntax, nesting, and GitHub callouts
• Markdown Horizontal Rules — section dividers with ---, ***, and ___
• Markdown HTML — use HTML tags inside Markdown documents
• Markdown Task Lists — checkbox syntax, nested checklists, and GitHub GFM
• Markdown Footnotes — references, citations, and GitHub GFM support
• GitHub Markdown — GFM syntax, README examples, and GitHub-specific features

Coming soon

• GitHub Flavored Markdown (GFM) — deep dive into GFM extensions and compatibility
• README Guide — templates, structure, and professional README workflows

The best way to learn GitHub Markdown is by writing it yourself. Open the Markdown Editor to experiment with README formatting while previewing the rendered output in real time.