Markdown cheatsheet

Basic Syntax

The Markdown elements outlined 

Overview

Nearly all Markdown applications support the basic syntax outlined in John Gruber’s original design document. There are minor variations and discrepancies between Markdown processors — those are noted inline wherever possible.




Headings

To create a heading, add number signs (#) in front of a word or phrase. The number of number signs you use should correspond to the heading level. For example, to create a heading level three (<h3>), use three number signs (e.g., ### My Header).

MarkdownHTMLRendered Output
# Heading level 1<h1>Heading level 1</h1>

Heading level 1

## Heading level 2<h2>Heading level 2</h2>

Heading level 2

### Heading level 3<h3>Heading level 3</h3>

Heading level 3

#### Heading level 4<h4>Heading level 4</h4>

Heading level 4

##### Heading level 5<h5>Heading level 5</h5>
Heading level 5
###### Heading level 6<h6>Heading level 6</h6>
Heading level 6

Alternate Syntax

Alternatively, on the line below the text, add any number of == characters for heading level 1 or -- characters for heading level 2.

MarkdownHTMLRendered Output
Heading level 1
===============
<h1>Heading level 1</h1>

Heading level 1

Heading level 2
---------------
<h2>Heading level 2</h2>

Heading level 2

Heading Best Practices

Markdown applications don’t agree on how to handle a missing space between the number signs (#) and the heading name. For compatibility, always put a space between the number signs and the heading name.

✅  Do this❌  Don't do this
# Here's a Heading

#Here's a Heading

You should also put blank lines before and after a heading for compatibility.

✅  Do this❌  Don't do this
Try to put a blank line before...

# Heading

...and after a heading.
Without blank lines, this might not look right.
# Heading
Don't do this!

Paragraphs

To create paragraphs, use a blank line to separate one or more lines of text.

MarkdownHTMLRendered Output
I really like using Markdown.

I think I'll use it to format all of my documents from now on.
<p>I really like using Markdown.</p>

<p>I think I'll use it to format all of my documents from now on.</p>

I really like using Markdown.

I think I'll use it to format all of my documents from now on.

Paragraph Best Practices

Unless the paragraph is in a list, don’t indent paragraphs with spaces or tabs.

✅  Do this❌  Don't do this
Don't put tabs or spaces in front of your paragraphs.

Keep lines left-aligned like this.

    This can result in unexpected formatting problems.

  Don't add tabs or spaces in front of paragraphs.

Line Breaks

To create a line break (<br>), end a line with two or more spaces, and then type return.

MarkdownHTMLRendered Output
This is the first line.  
And this is the second line.
<p>This is the first line.<br>
And this is the second line.</p>

This is the first line.
And this is the second line.

Line Break Best Practices

You can use two or more spaces (commonly referred to as “trailing whitespace”) for line breaks in nearly every Markdown application, but it’s controversial. It’s hard to see trailing whitespace in an editor, and many people accidentally or intentionally put two spaces after every sentence. For this reason, you may want to use something other than trailing whitespace for line breaks. If your Markdown application supports HTML, you can use the <br>HTML tag.

For compatibility, use trailing white space or the <br> HTML tag at the end of the line.

There are two other options I don’t recommend using. CommonMark and a few other lightweight markup languages let you type a backslash (\) at the end of the line, but not all Markdown applications support this, so it isn’t a great option from a compatibility perspective. And at least a couple lightweight markup languages don’t require anything at the end of the line — just type return and they’ll create a line break.

✅  Do this❌  Don't do this
First line with two spaces after.  
And the next line.

First line with the HTML tag after.<br>
And the next line.

First line with a backslash after.\
And the next line.

First line with nothing after.
And the next line.

Emphasis

You can add emphasis by making text bold or italic.

Bold

To bold text, add two asterisks or underscores before and after a word or phrase. To bold the middle of a word for emphasis, add two asterisks without spaces around the letters.

MarkdownHTMLRendered Output
I just love **bold text**.I just love <strong>bold text</strong>.I just love bold text.
I just love __bold text__.I just love <strong>bold text</strong>.I just love bold text.
Love**is**boldLove<strong>is</strong>boldLoveisbold

Bold Best Practices

Markdown applications don’t agree on how to handle underscores in the middle of a word. For compatibility, use asterisks to bold the middle of a word for emphasis.

✅  Do this❌  Don't do this
Love**is**boldLove__is__bold

Italic

To italicize text, add one asterisk or underscore before and after a word or phrase. To italicize the middle of a word for emphasis, add one asterisk without spaces around the letters.

MarkdownHTMLRendered Output
Italicized text is the *cat's meow*.Italicized text is the <em>cat's meow</em>.Italicized text is the cat’s meow.
Italicized text is the _cat's meow_.Italicized text is the <em>cat's meow</em>.Italicized text is the cat’s meow.
A*cat*meowA<em>cat</em>meowAcatmeow

Italic Best Practices

Markdown applications don’t agree on how to handle underscores in the middle of a word. For compatibility, use asterisks to italicize the middle of a word for emphasis.

✅  Do this❌  Don't do this
A*cat*meowA_cat_meow

Bold and Italic

To emphasize text with bold and italics at the same time, add three asterisks or underscores before and after a word or phrase. To bold and italicize the middle of a word for emphasis, add three asterisks without spaces around the letters.

MarkdownHTMLRendered Output
This text is ***really important***.This text is <strong><em>really important</em></strong>.This text is really important.
This text is ___really important___.This text is <strong><em>really important</em></strong>.This text is really important.
This text is __*really important*__.This text is <strong><em>really important</em></strong>.This text is really important.
This text is **_really important_**.This text is <strong><em>really important</em></strong>.This text is really important.
This is really***very***important text.This is really<strong><em>very</em></strong>important text.This is reallyveryimportant text.

Bold and Italic Best Practices

Markdown applications don’t agree on how to handle underscores in the middle of a word. For compatibility, use asterisks to bold and italicize the middle of a word for emphasis.

✅  Do this❌  Don't do this
This is really***very***important text.This is really___very___important text.

Blockquotes

To create a blockquote, add a > in front of a paragraph.

> Dorothy followed her through many of the beautiful rooms in her castle.

The rendered output looks like this:

Dorothy followed her through many of the beautiful rooms in her castle.

Blockquotes with Multiple Paragraphs

Blockquotes can contain multiple paragraphs. Add a > on the blank lines between the paragraphs.

> Dorothy followed her through many of the beautiful rooms in her castle.
>
> The Witch bade her clean the pots and kettles and sweep the floor and keep the fire fed with wood.

The rendered output looks like this:

Dorothy followed her through many of the beautiful rooms in her castle.

The Witch bade her clean the pots and kettles and sweep the floor and keep the fire fed with wood.

Nested Blockquotes

Blockquotes can be nested. Add a >> in front of the paragraph you want to nest.

> Dorothy followed her through many of the beautiful rooms in her castle.
>
>> The Witch bade her clean the pots and kettles and sweep the floor and keep the fire fed with wood.

The rendered output looks like this:

Dorothy followed her through many of the beautiful rooms in her castle.

The Witch bade her clean the pots and kettles and sweep the floor and keep the fire fed with wood.

Blockquotes with Other Elements

Blockquotes can contain other Markdown formatted elements. Not all elements can be used — you’ll need to experiment to see which ones work.

> #### The quarterly results look great!
>
> - Revenue was off the chart.
> - Profits were higher than ever.
>
>  *Everything* is going according to **plan**.

The rendered output looks like this:

The quarterly results look great!

  • Revenue was off the chart.
  • Profits were higher than ever.

Everything is going according to plan.

Blockquotes Best Practices

For compatibility, put blank lines before and after blockquotes.

✅  Do this❌  Don't do this
Try to put a blank line before...

> This is a blockquote

...and after a blockquote.
Without blank lines, this might not look right.
> This is a blockquote
Don't do this!

Lists

You can organize items into ordered and unordered lists.

Ordered Lists

To create an ordered list, add line items with numbers followed by periods. The numbers don’t have to be in numerical order, but the list should start with the number one.

MarkdownHTMLRendered Output
1. First item
2. Second item
3. Third item
4. Fourth item
<ol>
<li>First item</li>
<li>Second item</li>
<li>Third item</li>
<li>Fourth item</li>
</ol>
  1. First item
  2. Second item
  3. Third item
  4. Fourth item
1. First item
1. Second item
1. Third item
1. Fourth item
<ol>
<li>First item</li>
<li>Second item</li>
<li>Third item</li>
<li>Fourth item</li>
</ol>
  1. First item
  2. Second item
  3. Third item
  4. Fourth item
1. First item
8. Second item
3. Third item
5. Fourth item
<ol>
<li>First item</li>
<li>Second item</li>
<li>Third item</li>
<li>Fourth item</li>
</ol>
  1. First item
  2. Second item
  3. Third item
  4. Fourth item
1. First item
2. Second item
3. Third item
    1. Indented item
    2. Indented item
4. Fourth item
<ol>
<li>First item</li>
<li>Second item</li>
<li>Third item
<ol>
<li>Indented item</li>
<li>Indented item</li>
</ol>
</li>
<li>Fourth item</li>
</ol>
  1. First item
  2. Second item
  3. Third item
    1. Indented item
    2. Indented item
  4. Fourth item

Ordered List Best Practices

CommonMark and a few other lightweight markup languages let you use a parenthesis ()) as a delimiter (e.g., 1) First item), but not all Markdown applications support this, so it isn’t a great option from a compatibility perspective. For compatibility, use periods only.

✅  Do this❌  Don't do this
1. First item
2. Second item
1) First item
2) Second item

Unordered Lists

To create an unordered list, add dashes (-), asterisks (*), or plus signs (+) in front of line items. Indent one or more items to create a nested list.

MarkdownHTMLRendered Output
- First item
- Second item
- Third item
- Fourth item
<ul>
<li>First item</li>
<li>Second item</li>
<li>Third item</li>
<li>Fourth item</li>
</ul>
  • First item
  • Second item
  • Third item
  • Fourth item
* First item
* Second item
* Third item
* Fourth item
<ul>
<li>First item</li>
<li>Second item</li>
<li>Third item</li>
<li>Fourth item</li>
</ul>
  • First item
  • Second item
  • Third item
  • Fourth item
+ First item
+ Second item
+ Third item
+ Fourth item
<ul>
<li>First item</li>
<li>Second item</li>
<li>Third item</li>
<li>Fourth item</li>
</ul>
  • First item
  • Second item
  • Third item
  • Fourth item
- First item
- Second item
- Third item
    - Indented item
    - Indented item
- Fourth item
<ul>
<li>First item</li>
<li>Second item</li>
<li>Third item
<ul>
<li>Indented item</li>
<li>Indented item</li>
</ul>
</li>
<li>Fourth item</li>
</ul>
  • First item
  • Second item
  • Third item
    • Indented item
    • Indented item
  • Fourth item

Starting Unordered List Items With Numbers

If you need to start an unordered list item with a number followed by a period, you can use a backslash (\) to escape the period.

MarkdownHTMLRendered Output
- 1968\. A great year!
- I think 1969 was second best.
<ul>
<li>1968. A great year!</li>
<li>I think 1969 was second best.</li>
</ul>
  • 1968. A great year!
  • I think 1969 was second best.

Unordered List Best Practices

Markdown applications don’t agree on how to handle different delimiters in the same list. For compatibility, don’t mix and match delimiters in the same list — pick one and stick with it.

✅  Do this❌  Don't do this
- First item
- Second item
- Third item
- Fourth item
+ First item
* Second item
- Third item
+ Fourth item

Adding Elements in Lists

Paragraphs

* This is the first list item.
* Here's the second list item.

    I need to add another paragraph below the second list item.

* And here's the third list item.

The rendered output looks like this:

  • This is the first list item.
  • Here’s the second list item.

    I need to add another paragraph below the second list item.

  • And here’s the third list item.

Blockquotes

* This is the first list item.
* Here's the second list item.

    > A blockquote would look great below the second list item.

* And here's the third list item.

The rendered output looks like this:

  • This is the first list item.
  • Here’s the second list item.

    A blockquote would look great below the second list item.

  • And here’s the third list item.

Code Blocks

Code blocks are normally indented four spaces or one tab. When they’re in a list, indent them eight spaces or two tabs.

1. Open the file.
2. Find the following code block on line 21:

        <html>
          <head>
            <title>Test</title>
          </head>

3. Update the title to match the name of your website.

The rendered output looks like this:

  1. Open the file.
  2. Find the following code block on line 21:

     <html>
       <head>
         <title>Test</title>
       </head>
    
  3. Update the title to match the name of your website.

Images

1. Open the file containing the Linux mascot.
2. Marvel at its beauty.

    ![Tux, the Linux mascot](/assets/images/tux.png)

3. Close the file.

The rendered output looks like this:

  1. Open the file containing the Linux mascot.
  2. Marvel at its beauty.

    Tux, the Linux mascot

  3. Close the file.

Lists

You can nest an unordered list in an ordered list, or vice versa.

1. First item
2. Second item
3. Third item
    - Indented item
    - Indented item
4. Fourth item

The rendered output looks like this:

  1. First item
  2. Second item
  3. Third item
    • Indented item
    • Indented item
  4. Fourth item

Code

To denote a word or phrase as code, enclose it in backticks (`).

MarkdownHTMLRendered Output
At the command prompt, type `nano`.At the command prompt, type <code>nano</code>. At the command prompt, type nano.

Escaping Backticks

If the word or phrase you want to denote as code includes one or more backticks, you can escape it by enclosing the word or phrase in double backticks (``).

MarkdownHTMLRendered Output
``Use `code` in your Markdown file.``<code>Use `code` in your Markdown file.</code>Use `code` in your Markdown file.

Code Blocks

To create code blocks, indent every line of the block by at least four spaces or one tab.

    <html>
      <head>
      </head>
    </html>

The rendered output looks like this:

<html>
  <head>
  </head>
</html>

Horizontal Rules

To create a horizontal rule, use three or more asterisks (***), dashes (---), or underscores (___) on a line by themselves.

***

---

_________________

The rendered output of all three looks identical:


Horizontal Rule Best Practices

For compatibility, put blank lines before and after horizontal rules.

✅  Do this❌  Don't do this
Try to put a blank line before...

---

...and after a horizontal rule.
Without blank lines, this would be a heading.
---
Don't do this!

To create a link, enclose the link text in brackets (e.g., [Duck Duck Go]) and then follow it immediately with the URL in parentheses (e.g., (https://duckduckgo.com)).

My favorite search engine is [Duck Duck Go](https://duckduckgo.com).

The rendered output looks like this:

My favorite search engine is Duck Duck Go.


Adding Titles

You can optionally add a title for a link. This will appear as a tooltip when the user hovers over the link. To add a title, enclose it in parentheses after the URL.

My favorite search engine is [Duck Duck Go](https://duckduckgo.com "The best search engine for privacy").

The rendered output looks like this:

My favorite search engine is Duck Duck Go.

URLs and Email Addresses

To quickly turn a URL or email address into a link, enclose it in angle brackets.

<https://www.markdownguide.org>
<fake@example.com>

The rendered output looks like this:

https://www.markdownguide.org
fake@example.com

To emphasize links, add asterisks before and after the brackets and parentheses. To denote links as code, add backticks in the brackets.

I love supporting the **[EFF](https://eff.org)**.
This is the *[Markdown Guide](https://www.markdownguide.org)*.
See the section on [`code`](#code).

The rendered output looks like this:

I love supporting the EFF.
This is the Markdown Guide.
See the section on code.

Reference-style links are a special kind of link that make URLs easier to display and read in Markdown. Reference-style links are constructed in two parts: the part you keep inline with your text and the part you store somewhere else in the file to keep the text easy to read.

The first part of a reference-style link is formatted with two sets of brackets. The first set of brackets surrounds the text that should appear linked. The second set of brackets displays a label used to point to the link you’re storing elsewhere in your document.

Although not required, you can include a space between the first and second set of brackets. The label in the second set of brackets is not case sensitive and can include letters, numbers, spaces, or punctuation.

This means the following example formats are roughly equivalent for the first part of the link:

  • [hobbit-hole][1]
  • [hobbit-hole] [1]

The second part of a reference-style link is formatted with the following attributes:

  1. The label, in brackets, followed immediately by a colon and at least one space (e.g., [label]: ).
  2. The URL for the link, which you can optionally enclose in angle brackets.
  3. The optional title for the link, which you can enclose in double quotes, single quotes, or parentheses.

This means the following example formats are all roughly equivalent for the second part of the link:

  • [1]: https://en.wikipedia.org/wiki/Hobbit#Lifestyle
  • [1]: https://en.wikipedia.org/wiki/Hobbit#Lifestyle "Hobbit lifestyles"
  • [1]: https://en.wikipedia.org/wiki/Hobbit#Lifestyle 'Hobbit lifestyles'
  • [1]: https://en.wikipedia.org/wiki/Hobbit#Lifestyle (Hobbit lifestyles)
  • [1]: <https://en.wikipedia.org/wiki/Hobbit#Lifestyle> "Hobbit lifestyles"
  • [1]: <https://en.wikipedia.org/wiki/Hobbit#Lifestyle> 'Hobbit lifestyles'
  • [1]: <https://en.wikipedia.org/wiki/Hobbit#Lifestyle> (Hobbit lifestyles)

You can place this second part of the link anywhere in your Markdown document. Some people place them immediately after the paragraph in which they appear while other people place them at the end of the document (like endnotes or footnotes).

An Example Putting the Parts Together

Say you add a URL as a standard URL link to a paragraph and it looks like this in Markdown:

In a hole in the ground there lived a hobbit. Not a nasty, dirty, wet hole, filled with the ends
of worms and an oozy smell, nor yet a dry, bare, sandy hole with nothing in it to sit down on or to
eat: it was a [hobbit-hole](https://en.wikipedia.org/wiki/Hobbit#Lifestyle "Hobbit lifestyles"), and that means comfort.

Though it may point to interesting additional information, the URL as displayed really doesn’t add much to the existing raw text other than making it harder to read. To fix that, you could format the URL like this instead:

In a hole in the ground there lived a hobbit. Not a nasty, dirty, wet hole, filled with the ends
of worms and an oozy smell, nor yet a dry, bare, sandy hole with nothing in it to sit down on or to
eat: it was a [hobbit-hole][1], and that means comfort.

[1]: <https://en.wikipedia.org/wiki/Hobbit#Lifestyle> "Hobbit lifestyles"

In both instances above, the rendered output would be identical:

In a hole in the ground there lived a hobbit. Not a nasty, dirty, wet hole, filled with the ends of worms and an oozy smell, nor yet a dry, bare, sandy hole with nothing in it to sit down on or to eat: it was a hobbit-hole, and that means comfort.

and the HTML for the link would be:

<a href="https://en.wikipedia.org/wiki/Hobbit#Lifestyle" title="Hobbit lifestyles">hobbit-hole</a>

Markdown applications don’t agree on how to handle spaces in the middle of a URL. For compatibility, try to URL encode any spaces with %20.

✅  Do this❌  Don't do this
[link](https://www.example.com/my%20great%20page)[link](https://www.example.com/my great page)

Images

To add an image, add an exclamation mark (!), followed by alt text in brackets, and the path or URL to the image asset in parentheses. You can optionally add a title after the URL in the parentheses.

![The San Juan Mountains are beautiful!](/assets/images/san-juan-mountains.jpg "San Juan Mountains")

The rendered output looks like this:

The San Juan Mountains are beautiful!

Linking Images

To add a link to an image, enclose the Markdown for the image in brackets, and then add the link in parentheses.

[![An old rock in the desert](/assets/images/shiprock.jpg "Shiprock, New Mexico by Beau Rogers")](https://www.flickr.com/photos/beaurogers/31833779864/in/photolist-Qv3rFw-34mt9F-a9Cmfy-5Ha3Zi-9msKdv-o3hgjr-hWpUte-4WMsJ1-KUQ8N-deshUb-vssBD-6CQci6-8AFCiD-zsJWT-nNfsgB-dPDwZJ-bn9JGn-5HtSXY-6CUhAL-a4UTXB-ugPum-KUPSo-fBLNm-6CUmpy-4WMsc9-8a7D3T-83KJev-6CQ2bK-nNusHJ-a78rQH-nw3NvT-7aq2qf-8wwBso-3nNceh-ugSKP-4mh4kh-bbeeqH-a7biME-q3PtTf-brFpgb-cg38zw-bXMZc-nJPELD-f58Lmo-bXMYG-bz8AAi-bxNtNT-bXMYi-bXMY6-bXMYv)

The rendered output looks like this:

An old rock in the desert

Escaping Characters

To display a literal character that would otherwise be used to format text in a Markdown document, add a backslash (\) in front of the character.

\* Without the backslash, this would be a bullet in an unordered list.

The rendered output looks like this:

* Without the backslash, this would be a bullet in an unordered list.

Characters You Can Escape

You can use a backslash to escape the following characters.

CharacterName
\backslash
`backtick (see also escaping backticks in code)
*asterisk
_underscore
{ }curly braces
[ ]brackets
< >angle brackets
( )parentheses
#pound sign
+plus sign
-minus sign (hyphen)
.dot
!exclamation mark
|pipe (see also escaping pipe in tables)

HTML

Many Markdown applications allow you to use HTML tags in Markdown-formatted text. This is helpful if you prefer certain HTML tags to Markdown syntax. For example, some people find it easier to use HTML tags for images. Using HTML is also helpful when you need to change the attributes of an element, like specifying the color of text or changing the width of an image.

To use HTML, place the tags in the text of your Markdown-formatted file.

This **word** is bold. This <em>word</em> is italic.

The rendered output looks like this:

This word is bold. This word is italic.

HTML Best Practices

For security reasons, not all Markdown applications support HTML in Markdown documents. When in doubt, check your Markdown application’s documentation. Some applications support only a subset of HTML tags.

Use blank lines to separate block-level HTML elements like <div><table><pre>, and <p> from the surrounding content. Try not to indent the tags with tabs or spaces — that can interfere with the formatting.

You can’t use Markdown syntax inside block-level HTML tags. For example, <p>italic and **bold**</p> won’t work.


Availability

Not all Markdown applications support extended syntax elements. You’ll need to check whether or not the lightweight markup language your application is using supports the extended syntax elements you want to use. If it doesn’t, it may still be possible to enable extensions in your Markdown processor.

Lightweight Markup Languages

There are several lightweight markup languages that are supersets of Markdown. They include Gruber’s basic syntax and build upon it by adding additional elements like tables, code blocks, syntax highlighting, URL auto-linking, and footnotes. Many of the most popular Markdown applications use one of the following lightweight markup languages:

Markdown Processors

There are dozens of Markdown processors available. Many of them allow you to add extensions that enable extended syntax elements. Check your processor’s documentation for more information.

Tables

To add a table, use three or more hyphens (---) to create each column’s header, and use pipes (|) to separate each column. For compatibility, you should also add a pipe on either end of the row.

| Syntax      | Description |
| ----------- | ----------- |
| Header      | Title       |
| Paragraph   | Text        |

The rendered output looks like this:

SyntaxDescription
HeaderTitle
ParagraphText

Cell widths can vary, as shown below. The rendered output will look the same.

| Syntax | Description |
| --- | ----------- |
| Header | Title |
| Paragraph | Text |

Alignment

You can align text in the columns to the left, right, or center by adding a colon (:) to the left, right, or on both side of the hyphens within the header row.

| Syntax      | Description | Test Text     |
| :---        |    :----:   |          ---: |
| Header      | Title       | Here's this   |
| Paragraph   | Text        | And more      |

The rendered output looks like this:

SyntaxDescriptionTest Text
HeaderTitleHere’s this
ParagraphTextAnd more

Formatting Text in Tables

You can format the text within tables. For example, you can add linkscode (words or phrases in backticks (`) only, not code blocks), and emphasis.

You can’t add headings, blockquotes, lists, horizontal rules, images, or HTML tags.

Escaping Pipe Characters in Tables

You can display a pipe (|) character in a table by using its HTML character code (&#124;).

Fenced Code Blocks

The basic Markdown syntax allows you to create code blocks by indenting lines by four spaces or one tab. If you find that inconvenient, try using fenced code blocks. Depending on your Markdown processor or editor, you’ll use three backticks (```) or three tildes (~~~) on the lines before and after the code block. The best part? You don’t have to indent any lines!

```
{
  "firstName": "John",
  "lastName": "Smith",
  "age": 25
}
```

The rendered output looks like this:

{
  "firstName": "John",
  "lastName": "Smith",
  "age": 25
}

Syntax Highlighting

Many Markdown processors support syntax highlighting for fenced code blocks. This feature allows you to add color highlighting for whatever language your code was written in. To add syntax highlighting, specify a language next to the backticks before the fenced code block.

```json
{
  "firstName": "John",
  "lastName": "Smith",
  "age": 25
}
```

The rendered output looks like this:

{
  "firstName": "John",
  "lastName": "Smith",
  "age": 25
}

Footnotes

Footnotes allow you to add notes and references without cluttering the body of the document. When you create a footnote, a superscript number with a link appears where you added the footnote reference. Readers can click the link to jump to the content of the footnote at the bottom of the page.

To create a footnote reference, add a caret and an identifier inside brackets ([^1]). Identifiers can be numbers or words, but they can’t contain spaces or tabs. Identifiers only correlate the footnote reference with the footnote itself — in the output, footnotes are numbered sequentially.

Add the footnote using another caret and number inside brackets with a colon and text ([^1]: My footnote.). You don’t have to put footnotes at the end of the document. You can put them anywhere except inside other elements like lists, block quotes, and tables.

Here's a simple footnote,[^1] and here's a longer one.[^bignote]

[^1]: This is the first footnote.

[^bignote]: Here's one with multiple paragraphs and code.

    Indent paragraphs to include them in the footnote.

    `{ my code }`

    Add as many paragraphs as you like.

The rendered output looks like this:

Here’s a simple footnote,1 and here’s a longer one.2

  1. This is the first footnote. 

  2. Here’s one with multiple paragraphs and code.

    Indent paragraphs to include them in the footnote.

    { my code }

    Add as many paragraphs as you like. 

Heading IDs

Many Markdown processors support custom IDs for headings — some Markdown processors automatically add them. Adding custom IDs allows you to link directly to headings and modify them with CSS. To add a custom heading ID, enclose the custom ID in curly braces on the same line as the heading.

### My Great Heading {#custom-id}

The HTML looks like this:

<h3 id="custom-id">My Great Heading</h3>

Linking to Heading IDs

You can link to headings with custom IDs in the file by creating a standard link with a number sign (#) followed by the custom heading ID.

MarkdownHTMLRendered Output
[Heading IDs](#heading-ids)<a href="#heading-ids">Heading IDs</a>Heading IDs

Other websites can link to the heading by adding the custom heading ID to the full URL of the webpage (e.g, [Heading IDs](https://www.markdownguide.org/extended-syntax#heading-ids)).

Definition Lists

Some Markdown processors allow you to create definition lists of terms and their corresponding definitions. To create a definition list, type the term on the first line. On the next line, type a colon followed by a space and the definition.

First Term
: This is the definition of the first term.

Second Term
: This is one definition of the second term.
: This is another definition of the second term.

The HTML looks like this:

<dl>
  <dt>First Term</dt>
  <dd>This is the definition of the first term.</dd>
  <dt>Second Term</dt>
  <dd>This is one definition of the second term. </dd>
  <dd>This is another definition of the second term.</dd>
</dl>

The rendered output looks like this:

First Term
This is the definition of the first term.
Second Term
This is one definition of the second term.
This is another definition of the second term.

Strikethrough

You can strikethrough words by putting a horizontal line through the center of them. The result looks like this. This feature allows you to indicate that certain words are a mistake not meant for inclusion in the document. To strikethrough words, use two tilde symbols (~~) before and after the words.

~~The world is flat.~~ We now know that the world is round.

The rendered output looks like this:

The world is flat. We now know that the world is round.

Task Lists

Task lists allow you to create a list of items with checkboxes. In Markdown applications that support task lists, checkboxes will be displayed next to the content. To create a task list, add dashes (-) and brackets with a space ([ ]) in front of task list items. To select a checkbox, add an x in between the brackets ([x]).

- [x] Write the press release
- [ ] Update the website
- [ ] Contact the media

The rendered output looks like this:

Markdown task list

Emoji

There are two ways to add emoji to Markdown files: copy and paste the emoji into your Markdown-formatted text, or type emoji shortcodes.

Copying and Pasting Emoji

In most cases, you can simply copy an emoji from a source like Emojipedia and paste it into your document. Many Markdown applications will automatically display the emoji in the Markdown-formatted text. The HTML and PDF files you export from your Markdown application should display the emoji.


Using Emoji Shortcodes

Some Markdown applications allow you to insert emoji by typing emoji shortcodes. These begin and end with a colon and include the name of an emoji.

Gone camping! :tent: Be back soon.

That is so funny! :joy:

The rendered output looks like this:

Gone camping! ⛺ Be back soon.

That is so funny! 😂


Automatic URL Linking

Many Markdown processors automatically turn URLs into links. That means if you type http://www.example.com, your Markdown processor will automatically turn it into a link even though you haven’t used brackets.

http://www.example.com

The rendered output looks like this:

http://www.example.com

Disabling Automatic URL Linking

If you don’t want a URL to be automatically linked, you can remove the link by denoting the URL as code with backticks.

`http://www.example.com`

The rendered output looks like this:

http://www.example.com

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