Markdown to HTML Converter

Write or paste Markdown to get clean HTML and a live preview side by side. It supports headings, bold and italic, lists, links, inline code and code blocks, and runs entirely in your browser.

Type some Markdown above to see the HTML.

How Markdown conversion works

Markdown is a lightweight markup language that uses plain-text symbols — # for headings, * for emphasis, - for list items — which a converter turns into the equivalent HTML tags. The original idea is that the source stays readable even before it's rendered.

Markdown source parse blocks & inline HTML tags

This converter parses your text block by block (headings, lists, code fences, paragraphs) and then handles inline formatting (bold, italic, links, inline code). The HTML it produces is escaped where needed so the output is safe to drop into a page.

Worked example

The Markdown # Title followed by - one and - two becomes:

Heading: <h1>Title</h1>.
List: a <ul> with two <li> items.
Bold **x**<strong>x</strong>.

Supported syntax

This converter handles the most common Markdown: ATX headings (# … ######), unordered and ordered lists, bold (**…**), italic (*…*), inline `code`, fenced code blocks (```), links [text](url), blockquotes (>) and horizontal rules (---). It's intentionally simple and dependency-free, so very advanced features like tables or footnotes aren't included.

Tip: need to encode special characters for HTML attributes? Use the HTML entity encoder.

Frequently asked questions

What Markdown features are supported?

Headings, bold, italic, inline code, fenced code blocks, unordered and ordered lists, links, blockquotes and horizontal rules. Advanced extras like tables and footnotes aren't included to keep it fast and dependency-free.

Is the HTML output safe to paste?

Yes. Text content is HTML-escaped during conversion, so characters like < and & become entities and won't break your page or inject markup unexpectedly.

Does it run on a server?

No. The entire conversion runs in your browser as you type, so your Markdown is never uploaded. That makes it safe for private notes or unpublished drafts.

Why doesn't my table render?

This is a lightweight converter focused on the most common syntax. GitHub-style tables and footnotes need a fuller parser, so they pass through as plain text.

MB
Mustafa Bilgic · Editor, Calcool
Implements a focused subset of Markdown (headings, lists, emphasis, code, links). HTML text is escaped for safety. Everything runs in your browser — nothing you enter is uploaded, logged or stored.

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