What a markdown file is and why you might have one

A markdown file is a plain text document with a .md extension — like "notes.md" or "README.md". It contains text that someone formatted using markdown, a straightforward system of symbols that tell programs how to display headings, bold text, lists, and links without needing special software.

You might have a markdown file because you downloaded it from a website, received it in an email, or created one yourself in a text editor. The file itself is just text, so it opens in almost any program that reads text. The symbols inside (like # for headings or ** for bold) only display as formatting if you open it in a program that understands markdown.

The simplest way to open a markdown file is to double-click it like any other file. Your computer will open it in whatever program is set as the default for .md files. If that program does not display the formatting nicely, you can choose a different one.

Key Takeaways

  • Double-clicking a markdown file opens it in your default text program, which will show the raw text and symbols but not the formatted display.
  • Windows Notepad, Mac TextEdit, and Linux text editors all open markdown files, but none of them show the formatting as it would appear on a website.
  • Free programs like Visual Studio Code, Typora, and Markdown Preview Plus let you see both the raw markdown and the formatted result side by side.
  • If you want to see only the formatted result without the symbols, use a markdown viewer or open the file in a web browser if it has been converted to HTML.

Opening a markdown file with your default program

The fastest way to open a markdown file is to find it in your file explorer and double-click it. On Windows, this opens the file in Notepad. On Mac, it opens in TextEdit. On Linux, it opens in whatever text editor your system uses by default, usually gedit or nano.

When you open a markdown file this way, you see all the raw text and symbols exactly as they were typed. A heading written as "# My Title" will display as "# My Title" rather than as a large formatted heading. This is fine if you only need to read or edit the text itself, but it does not show you what the markdown is supposed to look like when formatted.

If you want to change which program opens markdown files by default, right-click the file, select "Open with" (Windows) or "Open With" (Mac), and choose a different program from the list. You can then select "Always use this app" to make that choice permanent.

Viewing formatted markdown in Visual Studio Code

Visual Studio Code is a free program from Microsoft that opens markdown files and shows you both the raw text and a preview of how it will look formatted. read it from code.visualstudio.com for Windows, Mac, or Linux.

After you install it, right-click a markdown file and select "Open with Code". The file opens in Visual Studio Code. On the right side of the window, click the preview icon (it looks like an open book) or press Ctrl+K then V on Windows and Linux, or Cmd+K then V on Mac. A preview pane appears on the right showing the formatted version while you edit the raw text on the left.

Visual Studio Code is powerful and has many features, but for just viewing markdown, you only need to know about that preview button. The program is free and does not require you to create an account.

Using a dedicated markdown viewer or editor

If you want a simpler program that focuses only on markdown, Typora is a popular choice for Windows and Mac. It shows the formatted result as you type, without a separate preview pane. Typora is free to read and use, though the developers ask for a donation.

On Linux, Markdown Preview Plus is a lightweight viewer available through most package managers. Search your system's software store for "markdown" to see what options are available for your specific Linux distribution.

These programs are smaller and faster than Visual Studio Code if you only need to read or write markdown. They do not have the extra features that make Visual Studio Code useful for programming, so they are less overwhelming if you are new to markdown.

Opening markdown in a web browser

Some markdown files are meant to be converted to HTML and viewed in a web browser. If the file came with instructions to "build" it or "render" it, or if it is a README file from a software project, check whether there is an HTML version in the same folder.

If you have only the markdown file and want to see it formatted in your browser, you can drag and drop the file directly into an open browser window. Most browsers will display the raw markdown text rather than the formatted version, but some browser extensions can convert markdown to formatted HTML on the fly.

The most reliable way is to use an online markdown converter. Search for "markdown to HTML converter" and paste the contents of your markdown file into the converter. It will show you the formatted result when ready. This method works on any device and requires no software installation.

Choosing the right program for what you need to do

If you only need to read the markdown file once and do not care about formatting, open it with Notepad or your default text editor. If you plan to edit the file and want to see how your changes look, use Visual Studio Code or Typora. If you want to see only the formatted result without any symbols or editing, use a web browser or an online converter.

The choice depends on whether you need to edit the file, whether you want to see formatting, and whether you are comfortable installing new software. All of these options are free, so you can try more than one and see which feels most natural to you.

Frequently Asked Questions

Why does my markdown file look like plain text with symbols?

You opened it in a program that does not understand markdown formatting. Notepad, TextEdit, and basic text editors show the raw text exactly as it was typed, including all the # and ** symbols. Switch to Visual Studio Code, Typora, or a markdown viewer to see the formatted result.

Can I open a markdown file on my phone?

Yes. On iPhone, use an app like Markdown Editor or iA Writer. On Android, try Markor or Markdown Editor. Search your phone's app store for "markdown" to see what is available. Most of these apps are free or cost a few dollars.

What if I do not have Visual Studio Code installed?

You can still open the markdown file in Notepad or your default text editor to read it. If you want to see formatting without installing software, drag the file into a web browser or use an online markdown converter. Both work when ready without any setup.

Is markdown the same as a Word document?

No. A Word document (.docx) is a complex file that stores formatting, fonts, and images. A markdown file (.md) is plain text with straightforward symbols for formatting. Markdown is much smaller and works on any device, but it cannot store images or complex layouts the way Word can.

Can I convert a markdown file to PDF?

Yes. Visual Studio Code has extensions that convert markdown to PDF. Typora has a built-in export to PDF option. Online converters like Pandoc also convert markdown to PDF, Word, or HTML. Search for "markdown to PDF" to find a tool that fits your needs.