Markdown Preview
Write and preview Markdown in real-time with live rendering, syntax highlighting, and export options.
About Markdown Preview
A Markdown preview tool provides a split-pane editor where you can write Markdown on the left and see the rendered HTML preview on the right in real-time. Markdown is a lightweight markup language that lets you write formatted content using plain text syntax. It is used for documentation, README files, blog posts, technical writing, and note-taking on platforms like GitHub, GitLab, Stack Overflow, and Notion.
How to Use
Type or paste Markdown in the editor panel. The preview panel updates in real-time as you type, showing the rendered HTML output. Supported syntax includes headings (#, ##, ###), bold (**text**), italic (*text*), links [text](url), images , code blocks (language), blockquotes (>), lists (- or 1.), tables, horizontal rules (---), and more.
Formula / Key Equations
Markdown syntax maps to HTML: # to h1, ## to h2, **text** to strong, *text* to em, [text](url) to a,  to img, `code` to code, fenced code blocks to pre/code, > to blockquote, -/1. to ul/ol, | table | to table.
Common Use Cases
Writing README files for GitHub repositories. Drafting documentation and technical articles. Creating wiki content for team knowledge bases. Previewing blog posts before publishing. Writing formatted notes and assignments. Prototyping web page content structure.
Limitations
The preview uses a specific Markdown parser (typically CommonMark or GitHub Flavored Markdown). Extended features like footnotes, math equations (LaTeX), diagrams (Mermaid), or syntax highlighting may have limited support. HTML embedded in Markdown is rendered but may be sanitized for security. Very large documents may have performance implications.
Frequently Asked Questions
What is GitHub Flavored Markdown?
GitHub Flavored Markdown (GFM) is an extension of standard Markdown that adds support for task lists, tables, strikethrough, autolinks, and emoji shortcodes. It is the standard Markdown dialect used on GitHub, GitLab, and many other developer platforms.
How do I create a table in Markdown?
Create tables using pipes and hyphens: | Header 1 | Header 2 | followed by |---------|---------| then | Cell 1 | Cell 2 |. Alignment can be specified with colons: :--- for left, :---: for center, ---: for right. Our preview renders these as HTML tables.
Can I use HTML inside Markdown?
Yes. Most Markdown parsers allow inline HTML within Markdown content. This is useful for elements that Markdown does not support natively (iframes, custom divs, complex layouts). However, not all Markdown renderers handle embedded HTML identically, and some platforms sanitize or strip certain HTML tags.
What is the difference between Markdown and rich text editors?
Markdown uses plain text with special syntax characters (#, *, etc.) that is converted to HTML. Rich text editors (like Google Docs, Microsoft Word) use WYSIWYG interfaces where formatting is applied directly. Markdown is preferred for developer documentation because it is version-control friendly, portable, and can be edited in any text editor.
Does the preview support code syntax highlighting?
Yes. Use fenced code blocks with the language specified: ```javascript followed by your code and closing ```. Common languages (JavaScript, Python, HTML, CSS, SQL, etc.) are highlighted with appropriate color schemes. This makes code blocks much more readable than plain text.