Md File Format Online


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Full nameMD, Markdown Documentation FileHTML - Hypertext Markup Language
File, .htm
MIME typetext/html
Developed byJohn GruberW3C & WHATWG
Type of formatDeveloperDocument file format
DescriptionMD files are basically text files. The text inside is written in one of many different dialects of the Markdown development language. They are used to author documentation also in a plain text format, so they can be turned into the HTML format. Furthermore, MD files are used to version control source code because it makes it easy to compare the code to revisions that have been written in human-readable text.HyperText Markup Language, commonly referred to as HTML, is the standard markup language used to create web pages. Along with CSS, and JavaScript, HTML is a cornerstone technology, used by most websites to create visually engaging web pages, user interfaces for web applications, and user interfaces for many mobile applications.
Technical detailsThe data inside the MD file is saved in plain text. However, this text can contain inline symbols that indicate how certain parts of the text should be formatted; such as bold, italic, table formatting, and more. The developer of the MD file format, John Gruber, also developed a program using the Perl programming language which allows the easy conversion of MD files in Markdown to HTML. Next to MD, Markdown files can also be saved using the MARKDOWN file extension.HTML elements form the building blocks of all websites. HTML allows images and objects to be embedded and can be used to create interactive forms. It provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes and other items.
File conversion MD conversion HTML conversion
Associated programsApple TextEdit (Mac), Daring Fireball Markdown (Windows, Mac & Linux), GitHUb (Web), GNU Emacs (Linux), gVim (Windows), MacroMates TextMate (Mac & Linux), MacVim (Mac), Microsoft Notepad (Windows), Microsoft WordPad (Windows), Vim (Linux), any other text editorMozilla Firefox, Opera, Google Chrome, Internet Explorer.

Markdown is a lightweight and easy-to-use syntax for styling all forms of writing on the GitHub platform.

What you will learn:

  • How the Markdown format makes styled collaborative editing easy
  • How Markdown differs from traditional formatting approaches
  • How to use Markdown to format text
  • How to leverage GitHub’s automatic Markdown rendering
  • How to apply GitHub’s unique Markdown extensions

What is Markdown?

Markdown is a way to style text on the web. You control the display of the document; formatting words as bold or italic, adding images, and creating lists are just a few of the things we can do with Markdown. Mostly, Markdown is just regular text with a few non-alphabetic characters thrown in, like # or *.

You can use Markdown most places around GitHub:

  • Comments in Issues and Pull Requests
  • Files with the .md or .markdown extension

For more information, see “Writing on GitHub” in the GitHub Help.


It's very easy to make some words bold and other words italic with Markdown. You can even link to Google!

Syntax guide

Here’s an overview of Markdown syntax that you can use anywhere on or in your own text files.








Md File Format Online


Inline code

GitHub Flavored Markdown uses its own version of the Markdown syntax that provides an additional set of useful features, many of which make it easier to work with content on

Note that some features of GitHub Flavored Markdown are only available in the descriptions and comments of Issues and Pull Requests. These include @mentions as well as references to SHA-1 hashes, Issues, and Pull Requests. Task Lists are also available in Gist comments and in Gist Markdown files.

Syntax highlighting

Here’s an example of how you can use syntax highlighting with GitHub Flavored Markdown:

You can also simply indent your code by four spaces:

Here’s an example of Python code without syntax highlighting:

Task Lists

If you include a task list in the first comment of an Issue, you will get a handy progress indicator in your issue list. It also works in Pull Requests!


You can create tables by assembling a list of words and dividing them with hyphens - (for the first row), and then separating each column with a pipe :

Md File Format Online

Would become:


First HeaderSecond Header
Content from cell 1Content from cell 2
Content in the first columnContent in the second column

SHA references

Any reference to a commit’s SHA-1 hash will be automatically converted into a link to that commit on GitHub.

Issue references within a repository

Any number that refers to an Issue or Pull Request will be automatically converted into a link.

Username @mentions

Typing an @ symbol, followed by a username, will notify that person to come and view the comment. This is called an “@mention”, because you’re mentioning the individual. You can also @mention teams within an organization.

Automatic linking for URLs

Any URL (like will be automatically converted into a clickable link.


Md File Format Online Generator

Any word wrapped with two tildes (like ~~this~~) will appear crossed out.


GitHub supports emoji!

To see a list of every image we support, check out the Emoji Cheat Sheet.

Md File Format Table

Last updated Jan 15, 2014