Markdown to HTML Converter

Convert Markdown to clean HTML — live preview with syntax highlighting

What Is Markdown to HTML Conversion?

Markdown to HTML conversion transforms Markdown-formatted text into semantic HTML markup. Markdown headings (# Title) become HTML heading tags (

Title

), bold text (**bold**) becomes bold, links ([text](url)) become tags, and code blocks become 
 elements. The conversion produces clean, standards-compliant HTML that browsers render correctly.
This conversion is essential for static site generators, blog publishing platforms, documentation systems, README rendering, and any workflow where content is authored in Markdown but needs to be displayed as HTML. Markdown's simple syntax lets writers focus on content without HTML angle brackets, while the converter produces the structured markup that browsers, email clients, and content management systems need.


How to Convert Markdown to HTML


  1. Paste your Markdown content into the left input panel
  2. The HTML output renders live in the right panel as you type
  3. Toggle between rendered preview and raw HTML source views
  4. Copy the generated HTML for use in your website, CMS, or email template
  5. Supports GitHub Flavored Markdown: tables, task lists, strikethrough, and fenced code blocks


Why Use PinusX for Markdown to HTML?


PinusX converts Markdown with 100% client-side processing in your browser. Your content — which may include draft blog posts, internal documentation, technical specifications, or private notes — never leaves your device. No server sees your text, and no data is logged or stored externally. In November 2025, jsonformatter.org leaked over 80,000 user credentials from server-side processing. PinusX avoids this risk by running the Markdown parser and HTML renderer entirely in your browser tab using JavaScript.


Frequently Asked Questions


Does it support GitHub Flavored Markdown?
Yes. The converter supports GFM extensions including tables (pipe-delimited), task lists (- [ ] and - [x]), strikethrough (~~text~~), fenced code blocks with syntax highlighting (```language), autolinked URLs, and emoji shortcodes (:smile:). These extensions cover the vast majority of Markdown used in modern documentation and README files.


Is the generated HTML semantic?
Yes. The converter produces semantic HTML: headings use <h1> through <h6>, paragraphs use <p>, lists use <ul>/<ol>/<li>, code blocks use <pre><code>, blockquotes use <blockquote>, and emphasis uses <em>/<strong>. This HTML is accessible, SEO-friendly, and follows web standards.


Can I include raw HTML in my Markdown?
Yes. Markdown allows inline HTML. Tags like <div>, <span>, <details>, and <summary> pass through to the HTML output unchanged. This lets you add HTML features (like collapsible sections or custom styling) that Markdown syntax does not support natively.


Does it support syntax highlighting in code blocks?
Yes. Fenced code blocks with a language identifier (```javascript, ```python, etc.) receive syntax highlighting in the preview. The generated HTML includes CSS classes for syntax tokens that can be styled with any highlight.js or Prism.js theme in your application.



Your data never leaves your browser. 100% client-side processing.


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