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Markdown to HTML Converter

Convert Markdown syntax to clean, semantic HTML instantly. Type or paste your Markdown on the left and see the live preview or raw HTML output on the right. Everything runs in your browser — no data sent anywhere.

Hello World

This is a Markdown to HTML converter built by NoteArc.

Features

  • Bold and italic text
  • Strikethrough text
  • Links
  • Inline code snippets

Code blocks

function greet(name) {
  return Hello, ${name}!;
}
This is a blockquote

Enjoy converting Markdown!

What is Markdown?

Markdown is a lightweight markup language created by John Gruber in 2004. It allows you to write formatted text using plain-text syntax that is easy to read and write. Markdown files use the .md or .markdown extension and are widely used for documentation, README files, blog posts, and content management systems.

The syntax was designed to be readable as-is, without needing to render it. For example, **bold text** clearly indicates bold formatting even in its raw form. This makes Markdown an excellent choice for writing content that might be consumed both as source text and as rendered HTML.

Supported Syntax

  • Headings: # H1 through ###### H6
  • Bold: **bold text**
  • Italic: *italic text*
  • Strikethrough: ~~strikethrough~~
  • Links: [text](url)
  • Images: ![alt](url)
  • Code: backtick for inline, triple backtick for blocks
  • Lists: - item or 1. item
  • Blockquotes: > quoted text
  • Horizontal rules: ---

Frequently Asked Questions

Does this support GitHub-Flavored Markdown (GFM)?

This converter supports the most commonly used GFM features including strikethrough, fenced code blocks, and basic table-like structures. For full GFM compliance with complex tables, consider using a library like remark or marked.

Can I use this for my blog?

Absolutely! Write your blog posts in Markdown, convert them to HTML here, and paste the HTML into your CMS or static site generator. The output is clean, semantic HTML that works great with any CSS framework.

Is the generated HTML SEO-friendly?

Yes. The converter outputs semantic HTML tags (h1–h6, p, ul, ol, blockquote) which search engines understand well. Just make sure you have only one h1 tag per page for proper heading hierarchy.