Markdown to HTML Converter

This tool reads Markdown and emits the matching HTML tags, which is handy when you have a chunk of writing in Markdown but need raw HTML to drop into a CMS field, an email template, a static page, or a comment box that does not accept Markdown. Paste a section of a README, a changelog entry, or a set of notes, press Run (or Ctrl/Cmd+Enter), and copy the generated markup straight into your destination.

It handles the formatting you reach for most often in short documents: headings, bullet lists, bold, and italic. A typical workflow is to draft in a Markdown editor where the syntax is comfortable, then run the text through here to get clean tags like <h2>, <ul><li>, and <strong> without hand-writing them. Use the Download button to save the result as a .html file (named formatos-markdown-to-html.html) if you would rather work with a file than the clipboard.

The converter handles a deliberately focused subset, processed line by line. Headings work for one to three hash marks: # becomes <h1>, ## becomes <h2>, and ### becomes <h3>. Lines beginning with - or * become list items wrapped in a single <ul>, and the list closes automatically when the next non-list line appears. Within ordinary paragraph lines, **text** becomes <strong> and *text* becomes <em>. Every other line becomes a <p>, and blank lines produce a gap.

Knowing the boundaries saves troubleshooting time. Headings beyond ### (#### and deeper) are not recognized as headings. Ordered (numbered) lists, links, images, inline code, fenced code blocks, blockquotes, tables, and nested lists are outside the supported set and will pass through as plain paragraph text. Bold and italic markers are applied only inside paragraph lines, so asterisks inside a heading or a list item are kept as literal characters rather than converted.

Everything happens locally in your browser. The Markdown you paste is converted by code running on the page, and the Copy and Download actions use your clipboard and an in-memory file, so your text is never uploaded to a server. That makes it reasonable to run internal docs, draft release notes, or unpublished content through it without the input leaving your machine.

One detail worth planning around: special characters are HTML-escaped before formatting is applied. Characters like <, >, and & in your input are turned into entities such as &lt; and &amp; in the output. This keeps the result safe and well-formed, but it also means any literal HTML you include in the Markdown is escaped rather than passed through untouched. If you need raw HTML preserved, this tool is not the right step for that part.

If the output is not what you expect, check the input against the supported subset first. Most surprises come from numbered lists, links, or deeper headings, which render as paragraphs. You can re-run as many times as you like, edit the input directly, or use Reset to return to the built-in sample and start fresh.