Markdown to HTML converter

Markdown and HTML, both ways

Markdown is the lightweight syntax behind READMEs, GitHub issues, docs sites and many CMSes — you write **bold** and ## Heading instead of tags. HTML is what browsers actually render. This tool goes in both directions: Markdown → HTML when a system only accepts HTML (an email template, a CMS field, a static page), and HTML → Markdown when you're pulling existing web content into a Markdown-based docs tool or wiki.

GitHub-flavored extensions

Conversion follows CommonMark plus the GitHub-Flavored Markdown (GFM) extensions most people actually use: tables, fenced code blocks, strikethrough, task lists and autolinked URLs. So a pipe table or a ```js code fence converts to the proper <table> or <pre><code> markup rather than being left as literal text. The output is shown as source for you to copy — not rendered as a live page — so you can paste it exactly where you need it.

Why a round-trip isn't always identical

Converting Markdown to HTML and back won't always return byte-for-byte what you started with, and that's expected: HTML can express things Markdown can't (arbitrary attributes, nested layout, inline styles), so the HTML → Markdown pass normalises to clean, standard Markdown and drops formatting that has no Markdown equivalent. The meaning is preserved; the exact characters may differ. To generate a table from scratch, the Markdown table generator is quicker, and the HTML entity encoder helps when output contains characters that need escaping.