Markdown to HTML Converter
This Markdown to HTML converter renders a document to HTML with GitHub-flavoured extensions enabled by default: tables, strikethrough, task lists and automatic links all work, alongside the standard headings, lists, emphasis, blockquotes and code blocks. Fenced code blocks keep their declared language as a class, so a syntax highlighter on the receiving page can pick it up. You can treat single newlines as line breaks the way comment boxes do, or leave them joined as the specification says. Choose a bare fragment to paste into a template, or a complete styled HTML document you can save and open directly.
How it works
Renders Markdown to HTML with GitHub-flavoured extensions on by default: tables, strikethrough, task lists and automatic links. Fenced code blocks keep their language as a class so a highlighter can pick it up.
Choose a complete document to get a styled, self-contained HTML file you can open in a browser or send to someone.
Everything runs in your browser — nothing you paste is sent to a server.
How to convert Markdown to HTML
- Paste your Markdown into the input on the left.
- Choose a bare fragment for pasting into a template, or a complete styled document.
- Copy the HTML, or download it as an
.htmlfile.
What the GitHub extensions add
Standard Markdown covers headings, lists, links, emphasis, code and quotes. The GitHub-flavoured extensions — enabled by default here, because most Markdown in the wild assumes them — add tables, strikethrough with double tildes, task list checkboxes and automatic linking of bare URLs.
The single-newline question
The Markdown specification joins consecutive lines into one paragraph: a line break in your source is not a line break in the output. That surprises people, because comment boxes on GitHub and similar sites override it so that Enter does what you expect.
Both behaviours are available. Leave the option off to follow the specification, or turn it on to match what a comment box does.
Code blocks keep their language
A block fenced as ```js produces <code class="language-js">, which is the class
name every syntax highlighter looks for. Nothing is highlighted here — that is the receiving page's job — but the
information needed to do it is preserved.
Complete document versus fragment
A fragment is what you want when the HTML is going into an existing page or template. The complete-document option adds a doctype, meta tags and readable default styling for headings, code, tables and quotes — enough to open in a browser or send to someone as a standalone file.
Common use cases
- Rendering a README for a page that does not support Markdown.
- Turning release notes into an HTML email body.
- Checking exactly what markup a document produces.
Frequently asked questions
How do I convert Markdown to HTML?
Paste your Markdown into the left panel. The HTML appears on the right, ready to copy or download.
What do the GitHub extensions add?
Tables, strikethrough with double tildes, task list checkboxes and automatic linking of bare URLs. They are on by default because most Markdown in the wild assumes them.
Why does a single newline not create a line break?
The Markdown specification joins consecutive lines into one paragraph. Comment boxes on sites like GitHub override that, so the option is there if you want the same behaviour.
Do code blocks keep their language?
Yes. A fenced block marked js produces a code element with class="language-js", which is what highlighters look for.
What is in the complete document option?
A full HTML file with a doctype, meta tags and readable default styling for headings, code, tables and quotes — enough to open in a browser or send to someone as-is.
Is my document uploaded?
No. Rendering happens entirely in your browser.
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