Markdown to HTML Converter Online

Transform Markdown notes, README files, and documentation into clean, semantic HTML markup. Render headings, bold and italic emphasis, ordered and unordered lists, blockquotes, code blocks, tables, and hyperlinks with zero server uploads.

Convert Markdown to semantic HTML elements

Paste your Markdown content into the editor and click Convert. The parser processes standard Markdown syntax into appropriate semantic HTML tags, turning hash headings into h1 through h6 tags, asterisks into emphasis tags, and hyphens into unordered list items.

Fenced code blocks and inline syntax

Code snippets enclosed in backticks are wrapped in code elements. Multi-line fenced code blocks with language identifiers generate pre and code tags with language CSS classes, preserving spacing and escaping internal angle brackets to avoid injection.

Links, images, blockquotes and formatting

Standard Markdown hyperlink and image notations are converted into anchor and image elements. Blockquotes are structured with semantic blockquote and paragraph tags, and horizontal rules become hr elements.

Sanitization and browser execution

All parsing runs client-side in memory. Angle brackets and ampersands in code blocks are escaped into character entities to keep markup safe. The resulting HTML can be copied or downloaded directly.

Technical references: CommonMark Specification · HTML Elements Reference

Markdown to HTML Converter FAQs

The converter supports CommonMark and GitHub Flavored Markdown (GFM) features including fenced code blocks, strikethrough, blockquotes, and lists.
Yes. Characters like <, >, and & within code blocks are converted into character entities so they display as literal characters rather than rendering as HTML.
Yes. The generated HTML is clean and semantic, suitable for pasting into CMS source editors, email templates, or static web pages.
Single line breaks within paragraph text are converted to br tags, while consecutive blank lines establish separate paragraph blocks.
No. Script tags and external style sheets are stripped during processing to maintain page stability.
Yes. You can copy the HTML output and paste it into our HTML to Markdown Converter to recover standard Markdown syntax.
Markdown image syntax is transformed into standard img elements featuring the specified image source URL and alternative text attribute.
The converter supports documents up to 100,000 characters, accommodating long articles and documentation files.
Yes. Numbered lines are enclosed within ordered list tags (ol), while bullet points are enclosed within unordered list tags (ul).