📖 Online Markdown Editor: Focus on Writing, Instant Preview
Markdown is the most popular lightweight markup language for developers, technical writers, and content creators. ng.cc's online Markdown editor features a split-view real-time preview: edit on the left, see the rendered result on the right—what you see is what you get. It supports headings, bold, italic, code blocks, tables, links, images, blockquotes, lists and more, with a built-in toolbar and one-click HTML export. All content is automatically saved to your browser's local storage; closing the tab won't lose your work. No login, completely free.
⚡ Live Preview
Instant rendering as you type. The preview area mimics the final HTML style, offering a smooth writing experience.
📦 One‑click HTML Export
Convert your Markdown to a full HTML document with embedded styles, ready to publish or paste into your blog CMS.
💾 Local Auto‑save
Content is automatically saved to your browser's LocalStorage every few seconds. Refresh or close the tab without fear—your draft is safe.
🔒 Privacy First
100% client-side. Your document never leaves your computer. Ideal for writing technical specs, API docs, interview notes, or any sensitive content.
🎯 Why Choose Markdown?
- 📚 Technical Documentation: The de facto standard for GitHub READMEs, tech blogs, and API docs. Clean syntax and version-control friendly.
- 📝 Notes & Writing: Focus on content, not formatting. Export to HTML with polished, consistent styling.
- 💬 Forum & Social: Reddit, Stack Overflow, and many platforms support Markdown for quick formatting.
- 📧 Email Composing: Write emails in Markdown and convert to HTML for better compatibility.
💡 Markdown Quick Reference
- Headings:
# H1, ## H2, ### H3 (up to H6)
- Bold:
**bold** → bold
- Italic:
*italic* → italic
- Inline code:
`code` → code
- Code block:
```javascript\ncode\n``` → syntax-highlighted block
- Unordered list:
- item or * item
- Ordered list:
1. first
- Link:
[text](https://url) → link
- Image:
- Blockquote:
> quote
- Horizontal rule:
--- or ***
- Table:
|col1|col2| format
❓ Frequently Asked Questions
❓ Q1: Does it support GFM (GitHub Flavored Markdown)?
Yes! This editor supports standard Markdown plus GFM extensions including tables, task lists, strikethrough, and code block syntax highlighting. The rendering closely matches GitHub's README style.
❓ Q2: Will the exported HTML lose styling?
The generated HTML file includes a complete CSS stylesheet (fonts, margins, code blocks, tables, etc.). It's a standalone document that looks consistent in any browser. You can also modify the style block to suit your needs.
❓ Q3: Does it support LaTeX math formulas?
Currently we focus on standard Markdown. LaTeX support (e.g., $E=mc^2$) requires MathJax or KaTeX integration, which is planned for a future version. For now, you can insert formula screenshots using the image syntax.
❓ Q4: Is my document private?
Absolutely. This tool is a static HTML page with no backend server or database. Your content exists only in your browser's memory and LocalStorage. You can even disconnect from the internet—it still works. That's the key difference from cloud-based note tools.
❓ Q5: Can I import an existing Markdown file?
Simply drag your .md file into the editor, or copy-paste the content. We recommend copy-paste as the fastest and safest method.
❓ Q6: How do I export to PDF?
Export the HTML first, then open it in your browser and use the "Print" function (Ctrl+P) and choose "Save as PDF". This yields a beautifully formatted PDF.
🔗 Recommended Tools
This editor is part of the ng.cc developer toolbox. You might also need:
⚡ All processing happens locally in your browser. Your documents never leave this device.