Skip to main content
K
KnowKit

Writing in Markdown and need to see how it looks as HTML?

Convert Markdown to clean HTML — or paste HTML and see the Markdown equivalent.

Markdown to HTML

Convert Markdown text to HTML with live preview

Understanding Markdown Syntax and HTML Conversion

Markdown is a lightweight markup language designed to make writing formatted content as simple as possible. Created by John Gruber in 2004, it uses plain-text syntax that is easy to read and write. Converting Markdown to HTML is a common task for content creators, developers, and documentation authors who need to transform their plain-text writing into web-ready markup.

Why Markdown to HTML Conversion Matters

While Markdown is human-readable, web browsers only understand HTML. Every Markdown file must be converted before it can be displayed on the web. Static site generators like Next.js, Hugo, and Jekyll handle this automatically, but there are many situations where you need to do the conversion manually — pasting content into a CMS, generating email templates, or embedding formatted text in an application.

Common Mistakes

  • ✗Forgetting to escape special characters — underscores inside words can trigger unwanted italic formatting
  • ✗Not closing code blocks with triple backticks, which breaks the rendering of everything that follows
  • ✗Assuming all Markdown parsers handle syntax the same way — tables, task lists, and footnotes vary between implementations

Pro Tips

  • ✓Use fenced code blocks with language identifiers for syntax highlighting in supported renderers
  • ✓Keep paragraphs separated by blank lines — a single newline does not create a new paragraph in standard Markdown
  • ✓Test your Markdown in multiple renderers if your content will be displayed across different platforms

Real-World Examples

Blog writing

Write posts in Markdown, convert to HTML, and paste into your CMS's source code editor

Documentation

Author README files and docs in Markdown, then convert to HTML for hosted documentation sites

Email templates

Draft email content in Markdown for readability, then convert to HTML for sending through email services

Want to learn more?

Markdown & Web Content

Read Full Guide
On this page

About Markdown to HTML Converter

What is Markdown?

Markdown is a lightweight markup language created by John Gruber in 2004 as a way to write formatted text using a plain-text editor. It uses simple, readable syntax that is easy to learn and write, making it the preferred format for documentation, README files, blog posts, comments, and messages across platforms like GitHub, Reddit, and Stack Overflow.

The key advantage of Markdown is its portability. Markdown files are plain text, which means they can be opened and edited with any text editor, tracked in version control systems, and easily converted to HTML for display on the web. This converter transforms your Markdown text into clean, standards-compliant HTML that can be used in websites, emails, content management systems, and more.

Our converter handles the most commonly used Markdown elements including headings, bold and italic text, lists, blockquotes, code blocks, links, and horizontal rules. It processes everything in your browser with no server round-trips, making it fast and private.

How to Use This Converter

Type or paste your Markdown text into the left panel. The converted HTML will appear in the right panel in real time as you type. You can switch between two viewing modes for the output:

  • Preview -- Shows how the HTML will look when rendered in a browser. This is useful for quickly checking the visual appearance of your formatted text.
  • HTML Code -- Shows the raw HTML source code. Use this when you need to copy the HTML to paste into a website, email template, or content management system.

Click the "Copy HTML" button to copy the generated HTML to your clipboard. You can then paste it directly into your HTML files, CMS editors, or any other tool that accepts HTML input.

Supported Markdown Syntax

Headings

Create headings by prefixing text with hash symbols. One hash for H1, two for H2, and three for H3. For example, "# My Heading" becomes an H1 element.

Bold and Italic

Wrap text in double asterisks for bold ("**bold**") or single asterisks for italic ("*italic*"). Combine them with triple asterisks for bold italic ("***bold italic***").

Lists

Create unordered lists by starting each line with a hyphen and a space ("- item"). Each list item becomes an HTML list element wrapped in an unordered list container.

Blockquotes

Prefix a line with a greater-than sign ("> quoted text") to create a blockquote. This is commonly used for attributing quotes or highlighting important text.

Code

Inline code is created with single backticks ("`code`"). Code blocks use triple backticks with an optional language identifier ("```javascript"). Code blocks are rendered with proper HTML escaping to prevent XSS vulnerabilities.

Links

Create links with the syntax "[link text](URL)". The converter generates proper anchor tags with href attributes.

Horizontal Rules

Three hyphens on their own line ("---") create a horizontal rule, rendered as an HTML hr element.

This utility is provided for informational purposes only. KnowKit is not responsible for any errors in the output.

Explore more about File Management

You might also like

HTML EntitiesFormat ConverterJSON Formatter

Frequently Asked Questions

Does the converter support tables?

The current version focuses on the most commonly used Markdown elements. Tables, footnotes, and some advanced features like task lists are not yet supported. The converter handles headings, text formatting, lists, blockquotes, code, links, and horizontal rules.

Is the generated HTML safe to use directly?

Yes. The converter escapes HTML entities in code blocks to prevent rendering issues and potential XSS vulnerabilities. However, if your Markdown contains raw HTML, it will be passed through as-is. Always review the output before using it in a production environment.

Can I convert HTML back to Markdown?

This tool is designed for Markdown-to-HTML conversion only. For HTML-to-Markdown conversion, you would need a separate tool. However, you can check out the other converter tools on KnowKit for additional format conversion options.