Markdown to HTML

What Markdown to HTML does

Write or paste lightweight markup—headings, lists, links, code fences—and preview the HTML translation your runtime likely emits. Flavors differ: GitHub adds tables and strikethrough; CommonMark is stricter about indentation and paragraph separation. Raw HTML blocks inside Markdown still pass through in many pipelines—never assume conversion sanitizes user-supplied text.

When to use it

Use it when authoring README previews, debugging CMS render oddities, or checking whether nested lists need extra indentation for your parser. After rendering to HTML, sanitize before storing if users can submit Markdown publicly; combine conceptually with HTML entity converter for escaped snippets and HTML tags remover when you only need visible copy.

Worked example

Docs render bullet lists as code blocks because each line was indented four spaces. Seeing Markdown-to-HTML side by side shows the spec treating indentation as a fenced code span—fix authoring guidelines, not the runtime random guess.

Frequently asked questions

Does this match my CMS?

Maybe partially. Always validate against the exact Markdown engine your platform bundles.

Images and HTTPS?

Markdown itself does not rewrite insecure embeds; CSP and mixed-content policies still apply.

Why heading anchors moved?

Slug algorithms for heading IDs vary per renderer—do not hard-code anchor URLs across systems.

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