Two representations of a document
Markdown lets a writer mark headings, emphasis, lists and links with short punctuation. HTML names those structures with elements such as h2, strong, ul and a. A renderer interprets Markdown and writes HTML; it does not merely replace every asterisk or hash character. Context matters: a hash inside ordinary text differs from a heading marker at the beginning of a line. HTML also has attributes, nested elements and browser parsing rules that Markdown shorthand may not express.
Use Markdown when the source should stay easy to edit in plain text. Use HTML when the destination expects explicit elements or when you need to inspect what a browser will receive. Before converting, identify the Markdown dialect accepted by the destination. MultiVerto handles a documented subset: headings, paragraphs, simple bullet lists, emphasis, links and inline code in both directions. Fenced code blocks work only toward HTML. Some unsupported constructs are rejected; others appear as literal text.
A worked conversion and its return
Enter a heading written as two hash signs followed by Notes, then a blank line and the sentence A **ready** draft. The Markdown-to-HTML tool produces an h2 element containing Notes and a paragraph containing a strong element around ready. A browser displays the title and bold word, while the HTML source retains the element boundaries. The example below includes a web link; its href remains an attribute rather than visible punctuation in the rendered sentence.
Now put that supported HTML into the HTML-to-Markdown tool. It can express the h2 as a Markdown heading, strong as paired asterisks and the link as bracketed text plus a URL. The text can look the same after both conversions even when whitespace, line breaks or exact source spelling differ. Compare the visible structure and the link target, not only a byte-for-byte match with the original Markdown.
- Markdown: ## Notes and **ready**
- HTML: h2 and strong elements
- Markdown again: check heading, emphasis and link
Why a round trip can lose information
HTML has structures and attributes with no simple Markdown equivalent. A styled span, a table, a custom data attribute or nested lists may not survive an HTML-to-Markdown conversion; this local tool rejects many such cases. In the other direction, Markdown parsers vary in support for tables, task lists, block quotes and raw HTML. MultiVerto rejects several of these rather than silently inventing output. A successful conversion of a small supported example therefore does not certify a complex document.
Even supported structures can be written in several ways. An HTML strong element and a b element may both become paired asterisks, so the original tag choice disappears. Browsers may also repair malformed HTML. Before publishing converted material, inspect the generated markup and render it in the target system. Save the original file so you can recover comments, layout decisions or attributes that the simpler representation cannot retain.
Escaping is a different operation
Encoding an HTML character for display is not the same as turning Markdown into HTML structure. If you want a reader to see the literal text <h2>Notes</h2> inside a page, represent its angle brackets as HTML entities or put it in a trusted code context. If you want a heading, emit the actual h2 element. The HTML entity encoder linked below deals with text representation; the Markdown converter creates elements. Treat user supplied content as untrusted in either path.
The local converter escapes plain text in its supported Markdown subset, but a real publishing workflow should still use a maintained parser and an appropriate sanitizer when arbitrary author input can contain links or markup. Check the destination rules for permitted URLs and tags. A practical review is to convert a small example, inspect the HTML source, render it, then reverse only the supported portion. When the return loses a feature, keep the richer source as the authoritative copy.