Markdown is a lightweight markup language for creating formatted text using a plain-text editor. It was created by John Gruber in 2004 and is widely used for README files, documentation, forum posts, and static site generation.

How do I write Markdown?

Markdown uses simple syntax: # for headings, * for italic, ** for bold, - for lists, > for blockquotes, and backticks for code. For example, **bold** renders as bold text.

Is my Markdown data sent to a server?

No. The entire preview process happens in your browser. Your Markdown content is never uploaded to any server, ensuring complete privacy for your documents and notes.

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What Is Markdown?

Markdown is a lightweight markup language that allows you to write formatted text using a plain-text editor. Created by John Gruber in 2004, Markdown has become the standard for writing documentation, README files, forum posts, and even entire websites. A Markdown previewer lets you see how your formatted text will appear in real time. Our free online Markdown editor provides instant live Markdown preview directly in your browser.

Common Markdown Syntax

Headings

Use # for h1, ## for h2, ### for h3, and so on down to h6.

Bold & Italic

Wrap text in ** for bold and * for italic.

Lists

Start a line with - or * for unordered lists, or 1. for ordered lists.

Code

Use backticks `code` for inline code or triple backticks ``` for code blocks.

Blockquotes

Start a line with > to create a blockquote for highlighting quoted text.

Links

Format links as [text](url) to create clickable hyperlinks in your document.

Why Developers Love Markdown

Version Control Friendly — Markdown files are plain text, making them easy to diff, merge, and track with Git and other version control systems.
Portable — Markdown can be converted to HTML, PDF, LaTeX, and many other formats. It works everywhere — GitHub, GitLab, Notion, Slack, and thousands of other platforms.
Fast to Write — No need to reach for a mouse or navigate complex toolbar menus. You can write structured documents as fast as you type.
Widely Supported — Every major code hosting platform, documentation generator (MkDocs, Docusaurus, Jekyll), and note-taking app supports Markdown natively.

How to Use This Markdown Previewer

To use our Markdown previewer online, type or paste your Markdown content into the textarea on the left and click Preview. The tool will instantly render your Markdown to HTML and display the result. You can then copy the generated HTML using the Copy HTML button. The editor comes pre-loaded with sample Markdown so you can see how different syntax elements look when rendered. Since everything runs in your browser, your content is never sent to any server — your documents and notes stay completely private.

Whether you are writing documentation for your open-source project, formatting a README file, drafting a blog post, or taking notes in Markdown, this live Markdown editor gives you instant feedback. No sign-up, no ads, no server uploads — just a fast, free Markdown to HTML converter that works offline.