Markdown to HTML Converter — Live Preview, No Upload
Convert Markdown to clean, valid HTML with a live split-pane preview. CommonMark-compliant, supports tables, code blocks, and blockquotes. Everything runs in your browser — no upload, no account, no logs. Ideal for content teams, developers, and writers who want a quick, private conversion.
How to use this tool
- Type or paste your Markdown into the left panel.
- See the live HTML preview on the right.
- Copy the HTML output for use in your project.
About Markdown to HTML
Markdown is a lightweight plain-text formatting syntax: you write asterisks for emphasis, hash marks for headings, and hyphens for list items, and a converter turns those marks into proper HTML elements. This tool takes Markdown in and produces clean, semantic HTML out, with a live split view so you can see both the rendered preview and the raw HTML the moment you stop typing. It is built on the marked library, a fast and widely used Markdown parser, and conversion runs as you edit so there is no separate convert step to press.
The tool supports the full range of standard Markdown plus the popular GitHub-Flavored Markdown (GFM) extensions. That covers the six heading levels, bold and italic emphasis, ordered and unordered lists including nested lists, links and images, inline code and fenced code blocks, blockquotes, horizontal rules, and GFM tables. Each construct maps to its natural HTML counterpart: a level-two heading becomes an h2 element, a fenced code block becomes a pre wrapping a code element, and a table becomes a full table with header and body rows. Because the output is structured, semantic HTML rather than a screenshot or styled blob, it slots directly into any web page, CMS, or static-site generator.
The two-panel layout is the point of using a live converter rather than a one-shot tool. The preview pane shows roughly how the content will look once rendered, which catches mistakes like an unclosed code fence or a list that did not indent the way you expected, while the HTML pane gives you the exact markup to copy. This tight feedback loop is what makes the tool useful for drafting README files, documentation, blog posts, and email content where you want to compose in Markdown's readable syntax but ship HTML.
A couple of practical notes. The generated HTML is unstyled by design: it carries semantic tags but no CSS, so it inherits whatever styles the destination page applies. That is ideal for a website but means email, where many clients ignore stylesheets and prefer inline styles, will usually need you to add styling after conversion. Markdown also permits raw HTML inside a document, which marked passes through, so the output reflects what you wrote. All parsing happens locally in your browser, so nothing you type is sent to a server.
Frequently Asked Questions
- Which Markdown features are supported?
- Standard Markdown plus GitHub-Flavored Markdown extensions: all six heading levels, bold and italic, ordered and unordered lists with nesting, links, images, inline code, fenced code blocks, blockquotes, horizontal rules, and tables. Each is converted to its semantic HTML equivalent.
- What library does the conversion use?
- It uses marked, a fast, mature, and widely adopted Markdown parser. marked is loaded in your browser and does all the parsing locally, so the output follows well-established Markdown rendering behavior that matches what you see on platforms like GitHub.
- Why is the HTML output not styled?
- By design, the converter produces semantic HTML with no CSS attached, so headings, lists, and code blocks use the right tags but no colors or fonts. This lets the markup inherit the styling of whatever page you paste it into. To style it, apply CSS in the destination site or add your own classes.
- Can I use the output in an email?
- You can, but expect to do extra work. Many email clients strip out or ignore stylesheets and render best with inline styles, while this tool outputs clean semantic HTML without inline styling. Convert here first, then add inline CSS to the tags before sending if you need consistent rendering across email clients.
- Does it support tables?
- Yes. GitHub-Flavored Markdown tables, written with pipes and a divider row of hyphens, are converted into a full HTML table with a header row and body rows. Column alignment using colons in the divider row is respected where you specify it.
- What happens to raw HTML I put in my Markdown?
- Markdown allows raw HTML inline, and the parser passes it through into the output. So if you write an HTML tag directly in your Markdown source, it appears as-is in the converted result. This is standard Markdown behavior and is useful when you need an element Markdown does not have its own syntax for.
- Does the preview update automatically?
- Yes. The conversion runs shortly after you stop typing, so both the rendered preview and the raw HTML refresh on their own without a convert button. You can toggle between the visual preview and the HTML source, and copy the HTML in one click.
- Is my Markdown sent to a server?
- No. All parsing happens in your browser. Your text is never uploaded, logged, or stored, so you can safely convert private documentation, unpublished posts, or internal notes.
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Embed this tool on your site
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<iframe src="https://brevio.pro/embed/markdown-to-html" width="100%" height="600" loading="lazy" style="border:1px solid #e5e5e5;border-radius:8px" title="Markdown to HTML — brevio"></iframe> <p style="font:12px/1.4 sans-serif"><a href="https://brevio.pro/tools/markdown-to-html">Markdown to HTML</a> by <a href="https://brevio.pro">brevio</a></p>