How do I convert Markdown to HTML online?

Choose Markdown → HTML, paste your Markdown (or drop a .md file), pick fragment or full document, then copy or download the HTML. Conversion runs in your browser - nothing is uploaded.

Can I convert HTML to Markdown on the same page?

Yes. Switch to HTML → Markdown or use Swap direction. The reverse path covers headings, lists, links, images, code blocks, tables, and emphasis.

What is the difference between fragment and full document?

A fragment is only the content markup for pasting into a CMS or template. A full document wraps that fragment in doctype, html, head (title from the first H1), and body so you can open or host a standalone .html file.

Which Markdown features are supported?

CommonMark basics (ATX headings, paragraphs, emphasis, links, images, fenced code, lists, blockquotes, thematic breaks) plus light GFM extras: tables, task lists, and strikethrough. Mermaid, LaTeX, and PDF export are intentionally out of scope.

Is my Markdown uploaded to a server?

No. Parsing and conversion run only in your browser. Safe for unpublished drafts, internal docs, and README files with private URLs.

Does the preview run scripts from my HTML?

No. The live preview uses a sandboxed iframe with no scripts. On HTML → Markdown, script/style/iframe tags and onclick-style handlers are stripped, and a badge tells you when that happened.

How is this different from other Markdown to HTML converters?

One URL covers both directions with Swap, fragment vs full-document packaging, pretty vs compact HTML, a structure census and byte sizes, sandboxed preview, script-strip badge on reverse, and README/blog/table/CMS samples - without Mermaid chrome or uploading your draft. Pair the HTML output with the HTML Minifier when you need a smaller paste.

Converter Tools

Markdown to HTML Converter

Paste Markdown and convert it to clean HTML - or lift HTML back to Markdown on the same page.

Everything runs in your browser. README drafts and CMS HTML never leave your device.

Drop a file here or click to browse

Accepts .md, .markdown, or .txt (max 2 MB). Read locally - nothing is uploaded.

Try a sample

HTML packaging

Fragment is content only. Full document adds doctype, head, and a title from the first H1.

HTML style

Show live HTML preview

Markdown input

2 headings · 1 links · 0 images · 1 code · 0 tables · 1 lists311 B in → 469 B outOutput: fragmentTitle: Project README

HTML output

<h1>Project README</h1>

<p>Convert <strong>Markdown</strong> to clean HTML in your browser.</p>

<h2>Features</h2>

<ul>
  <li>Headings, lists, and <a href="https://www.toolsminify.com">links</a></li>
  <li>Fenced <code>code</code> blocks</li>
  <li>GFM tables</li>
</ul>

<pre><code class="language-ts">export function greet(name: string) {
  return `Hello, ${name}`;
}</code></pre>

<blockquote>
<p>Nothing is uploaded - drafts stay on this device.</p>
</blockquote>

Live preview

Sandboxed iframe - scripts from your paste cannot run here.

About Markdown to HTML Converter

Paste Markdown and convert it to clean HTML - or lift HTML back to Markdown on the same page. This free Markdown to HTML Converter runs entirely in your browser, so drafts, README files, and CMS exports never leave your device. Choose a pasteable HTML fragment for a CMS field or a full document with doctype for a standalone page. Pretty or compact markup, a sandboxed live preview, and a structure census (headings, links, tables, code) show what you are about to ship. Swap direction feeds the output back as input. No Mermaid, no PDF export, no editor chrome - paste in, HTML out.

How to Use Markdown to HTML Converter

Choose Markdown → HTML or HTML → Markdown (or Swap direction after a conversion).
Paste your content, drop a local .md / .html file (max 2 MB - read in the browser only), or load a README, blog, table, or CMS sample.
For Markdown → HTML: pick fragment vs full document and pretty vs compact. Review the structure census and optional live preview.
Copy or download the result. Script tags and event handlers are stripped on HTML → Markdown. Nothing is uploaded.

Markdown to HTML Converter Examples

README to HTML fragment

Paste a GitHub README with headings, fenced code, and links. Export a fragment to drop into an existing template, or a full document to open as a standalone page.

Blog draft with task list

Convert a Markdown draft that uses ordered lists and - [x] task items into semantic HTML for a CMS body field.

GFM table cheatsheet

Pipe tables become real <table> markup. Use compact mode when you want fewer newlines before pasting into a form.

CMS HTML back to Markdown

Paste legacy editor HTML, strip scripts automatically, and get portable Markdown for a static-site repo or Notion import.

Round-trip with Swap

Convert Markdown to an HTML fragment, then Swap to HTML → Markdown to confirm headings, links, and tables survive the trip.

Frequently Asked Questions about Markdown to HTML Converter

How do I convert Markdown to HTML online?: Choose Markdown → HTML, paste your Markdown (or drop a .md file), pick fragment or full document, then copy or download the HTML. Conversion runs in your browser - nothing is uploaded.
Can I convert HTML to Markdown on the same page?: Yes. Switch to HTML → Markdown or use Swap direction. The reverse path covers headings, lists, links, images, code blocks, tables, and emphasis.
What is the difference between fragment and full document?: A fragment is only the content markup for pasting into a CMS or template. A full document wraps that fragment in doctype, html, head (title from the first H1), and body so you can open or host a standalone .html file.
Which Markdown features are supported?: CommonMark basics (ATX headings, paragraphs, emphasis, links, images, fenced code, lists, blockquotes, thematic breaks) plus light GFM extras: tables, task lists, and strikethrough. Mermaid, LaTeX, and PDF export are intentionally out of scope.
Is my Markdown uploaded to a server?: No. Parsing and conversion run only in your browser. Safe for unpublished drafts, internal docs, and README files with private URLs.
Does the preview run scripts from my HTML?: No. The live preview uses a sandboxed iframe with no scripts. On HTML → Markdown, script/style/iframe tags and onclick-style handlers are stripped, and a badge tells you when that happened.
How is this different from other Markdown to HTML converters?: One URL covers both directions with Swap, fragment vs full-document packaging, pretty vs compact HTML, a structure census and byte sizes, sandboxed preview, script-strip badge on reverse, and README/blog/table/CMS samples - without Mermaid chrome or uploading your draft. Pair the HTML output with the HTML Minifier when you need a smaller paste.

HTML Minifier

Free online HTML minifier. Compress and minify HTML by removing comments and collapsing whitespace - smaller files, faster page loads. Runs in your browser, no upload required.

JSON to CSV Converter

Convert JSON to CSV and CSV to JSON in your browser. Flatten nested objects, unflatten dotted keys on the way back, NDJSON, Excel EU preset, RFC 4180. Nothing is uploaded.

Text Case Converter

Convert text to UPPERCASE, lowercase, Title Case, or Sentence case instantly. Free online case converter for headlines, code, and formatting - runs in your browser, no signup.