ToolMill.io

Markdown to HTML Converter

Convert Markdown to HTML when preparing blog posts, documentation, README content, CMS entries, emails, or knowledge-base articles. It is helpful for checking how headings, emphasis, lists, and code-style content will render before publishing. ToolMill runs locally in your browser, making it a quick privacy-friendly alternative to online converters that upload your draft text.

Text

Try it

Examples

Headings and emphasis
Input
# Hello
This is **bold** and *italic*.
Output
<h1>Hello</h1>
<p>This is <strong>bold</strong> and <em>italic</em>.</p>
Bullet list conversion
Input
- apples
- bananas
- oranges
Output
<ul>
<li>apples</li>
<li>bananas</li>
<li>oranges</li>
</ul>

How Markdown to HTML Conversion Works

This page converts a lightweight subset of Markdown into HTML directly in your browser. It is intended for quick formatting checks and simple content workflows rather than full CommonMark coverage. That makes it useful for fast drafts, but you should keep expectations aligned with the small supported feature set.

Supported Markdown Syntax in This Tool

The current converter supports simple headings, paragraphs, bullet lists, inline code, bold text, italic text, and standard inline links. Those are enough for many small notes, README fragments, and CMS snippets where you only need quick readable HTML rather than advanced publishing features.

Unsupported Markdown Features to Know About

Advanced features such as numbered lists, fenced code blocks, tables, task lists, nested structures, images, and full raw-HTML handling may need manual cleanup or a heavier Markdown engine. This page is deliberately lightweight, so unsupported syntax should not be treated as a bug by itself.

Example: Paragraphs, Headings, and Inline Formatting

A practical use case is turning a draft heading and a short explanatory paragraph into HTML for a CMS field or preview step. Simple emphasis and inline code also convert cleanly, which is often enough when you are preparing lightweight documentation or article fragments.

Example: Links and Bullet Lists

Links and simple bullet lists are supported, so the page is useful for quick before-and-after checks on README snippets, help-center content, or internal notes. It is less suitable for documents that rely heavily on complex nesting or advanced list behavior.

When to Use Markdown to HTML Conversion

Use it when you need a fast HTML version of a short Markdown draft for a blog post, CMS editor, documentation snippet, internal note, or knowledge-base article. It is especially convenient when you want a quick preview without installing a separate editor or sending draft text to an online service.

HTML Output Expectations and Cleanup Tips

Treat the output as working HTML that may still need review before publishing. If your destination has sanitization rules, styling conventions, or stricter markup requirements, it is a good idea to inspect the generated tags and make any needed adjustments afterward.

Limitations of This Lightweight Converter

Before You Rely on Generated HTML in Emails, CMSs, or Apps

Before publishing the result, check whether the destination strips tags, rewrites classes, sanitizes raw HTML, or expects a narrower Markdown feature set. The converted HTML is useful for inspection and reuse, but the final destination still controls what will actually render.

Where Markdown-to-HTML Conversion May Differ Across Renderers

Markdown is not perfectly uniform across all editors, CMSs, and developer tools. Features such as task lists, automatic links, raw HTML handling, or fenced-code behavior can vary. If the output here differs from another platform, the difference is often due to renderer rules rather than a mistake in your original content.

How to Interpret the Rendered HTML Output

The HTML output shows how this page translates your Markdown into markup, but other renderers may apply different rules for tables, code fences, heading IDs, line breaks, or embedded HTML. Treat the result as a useful preview and conversion output, not a promise that every platform will render it the same way.

This tool prioritizes speed and clarity over full Markdown compatibility. That is a good fit for straightforward formatting tasks, but it is not a substitute for a complete spec-aware Markdown pipeline when you are publishing complex content.

Related tools