Markdown Preview & Editor Online
Write Markdown and see the rendered preview in real time. Supports headings, bold, italic, code blocks, lists, links, and more.
Welcome to Markdown Preview
Features
This tool supports bold, italic, and strikethrough text.
Code
Inline code and code blocks:
function hello() {
console.log("Hello, CodeUtilo!");
}
Lists
Links & Quotes
This is a blockquote. It can contain formatted text.
Start writing your Markdown on the left!
What is Markdown?
Markdown is a lightweight markup language that lets you format text using simple syntax. It is widely used in README files, documentation, blogs, forums (like Reddit), and messaging apps. Markdown files use the .md extension.
Markdown Cheat Sheet
# Heading 1, ## Heading 2, **bold**, *italic*, `code`, [link](url), , - list item, > blockquote, --- horizontal rule.
About This Tool
The Markdown Preview tool renders Markdown syntax to HTML in real time, showing exactly how your text will appear when published. It supports GitHub Flavored Markdown including headings, bold, italic, code blocks, tables, blockquotes, and task lists.
Key Features
- Live Side-by-Side Preview — Split-pane view shows your raw Markdown on the left and the rendered HTML output on the right, updating as you type.
- GitHub Flavored Markdown — Supports GFM extensions including fenced code blocks with syntax hints, tables, strikethrough text, and task list checkboxes.
- Sample Content — Load a built-in sample document with one click to explore the full range of supported Markdown syntax without typing.
- Browser-Based Processing — All Markdown rendering happens locally in your browser. Your content never leaves your device.
- Free & No Signup — Use this tool as many times as you need without creating an account or paying anything.
Common Use Cases
- Drafting and previewing README.md files for GitHub repositories before committing them
- Writing and formatting technical blog posts or documentation in Markdown before publishing to a CMS
- Checking that code blocks, tables, and lists render correctly before pasting into Confluence or Notion
- Previewing Markdown-formatted API documentation before generating static site output with Jekyll or Hugo
- Learning Markdown syntax interactively by typing and immediately seeing how each element renders
How to Use
Type or paste Markdown into the left panel. The rendered preview updates instantly in the right panel. Click the Sample button to load a demo document. Switch to preview-only mode with the toggle if you need more space to read the rendered output.
Frequently Asked Questions
What is Markdown and who invented it?
Markdown is a lightweight markup language created by John Gruber in 2004. It uses plain text formatting conventions that convert easily to HTML.
What is GitHub Flavored Markdown (GFM)?
GFM is a superset of standard Markdown used by GitHub. It adds fenced code blocks with language hints, tables, task lists, and strikethrough text.
How do I create a table in Markdown?
Use pipe characters | to separate columns and dashes --- to create the header separator row. Alignment colons control column alignment in the rendered table.
What is the difference between inline code and a code block?
Inline code uses single backticks for short snippets within a sentence. A fenced code block uses triple backticks on separate lines for multi-line code samples with optional syntax highlighting.
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