Online Markdown Editor
Write Markdown with a live preview. Format, export, and switch themes — all in your browser.
# Heading 1
## Heading 2
### Heading 3
**bold**
*italic*
~~strikethrough~~
[text](url)
- unordered item
1. ordered item
\`inline code\`
\`\`\`lang ... \`\`\`
> blockquote
--- (horizontal rule)
| Table | Header |
What is a Markdown Editor?
A markdown editor is a specialized text editor for writing content in Markdown — the lightweight markup language created by John Gruber. Markdown uses simple, intuitive syntax like # for headings, ** for bold, and * for italic text. This online markdown editor gives you a live preview panel that renders your Markdown as HTML in real time, so you can see exactly how your document will look as you write it.
Why Use an Online Markdown Editor?
- No installation required: Write Markdown directly in your browser without downloading or installing any software.
- Live preview: See the rendered output side-by-side as you type, catching formatting issues immediately.
- Formatting toolbar: Insert bold, italic, headings, links, images, code blocks, tables, and lists with one click.
- Export options: Copy the generated HTML to your clipboard or download your content as a .md file.
- Privacy-first: Everything runs in your browser — no data is ever sent to a server.
Supported Markdown Syntax
| Syntax | Output | Notes |
|---|---|---|
# Heading | Heading 1 | H1–H6 supported with 1–6 # characters |
**bold** | bold | Wrap text in double asterisks |
*italic* | italic | Wrap text in single asterisks |
~~strike~~ | GFM strikethrough syntax | |
[text](url) | Hyperlink | Inline link format |
 | Image | Alt text for accessibility |
`code` | code | Inline code with backticks |
```lang | Code block | Fenced block with syntax highlighting |
> quote | Blockquote | Nested blockquotes supported |
| A | B | | Table | GFM table syntax |
--- | Horizontal rule | Three or more dashes |
Frequently Asked Questions
What is a markdown editor?
A markdown editor is a text editor designed for writing Markdown — a lightweight markup language that uses plain text formatting syntax. A good markdown editor provides a live preview so you can see the rendered HTML output as you type, along with toolbar shortcuts for common formatting like bold, italic, headings, links, and code blocks.
How does the live markdown preview work?
As you type Markdown in the editor panel, the text is parsed and converted to HTML in real time. The rendered output appears instantly in the preview panel on the right. This markdown live preview updates on every keystroke so you always see exactly how your document will look when published.
What markdown syntax is supported?
This online markdown editor supports all standard Markdown syntax including headings (H1–H6), bold, italic, strikethrough, links, images, ordered and unordered lists, blockquotes, horizontal rules, inline code, fenced code blocks with syntax highlighting, and GitHub Flavored Markdown tables.
Can I export my markdown as HTML?
Yes. Click the 'Copy HTML' button to copy the rendered HTML output to your clipboard. You can also download your content as a .md file using the 'Download .md' button. Both export options are available in the toolbar above the editor.
Does this markdown editor support dark mode?
Yes. The editor includes a dark/light theme toggle. Dark mode uses a dark background with light text optimized for comfortable extended writing sessions. Light mode uses a white background for a more traditional editing experience.
Is my data safe in this markdown editor?
Absolutely. This markdown editor runs entirely in your browser using JavaScript. No data is sent to any server. Your content never leaves your device, making it completely safe for editing sensitive or proprietary documents.
What is the difference between Markdown and HTML?
Markdown is a lightweight markup language that uses simple plain text syntax (like # for headings and ** for bold) to create formatted documents. HTML is the standard markup language for web pages that uses angle-bracket tags. Markdown is easier to read and write, while HTML offers more precise control over formatting. Markdown is typically converted to HTML for display on the web.
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