Write or paste Markdown on the left and see clean HTML output on the right — live as you type. Supports headings, tables, task lists, fenced code blocks, and GitHub-Flavored Markdown. Runs entirely in your browser.
Markdown is a lightweight markup language created by John Gruber in 2004. Its core goal is to be readable as plain text while mapping cleanly to HTML when rendered. Instead of writing <h1>Heading</h1>, you write # Heading. Instead of <strong>bold</strong>, you write **bold**. The result is source files that are easy to read, write, and version-control, making Markdown the de-facto standard for READMEs, documentation, blog posts, wikis, and note-taking apps.
Converting Markdown to HTML is necessary whenever you need to embed Markdown content into a webpage, CMS, email template, or any environment that renders HTML. This tool supports GitHub-Flavored Markdown (GFM) — the widely used superset of standard Markdown that adds tables, fenced code blocks, task lists, and strikethrough text. The conversion runs entirely in your browser using JavaScript; nothing is uploaded anywhere.
#–######, paragraphs, blockquotes
.md file
.html file
.html file
It depends on your workflow. Markdown shines when the people writing content are not developers — it's fast to write, readable as plain text, and easily stored in version control. For technical documentation, blog posts, and knowledge bases, Markdown + a static site generator (Hugo, Eleventy, Astro) or a headless CMS is often the best architecture. The Markdown source lives in your repository and gets compiled to HTML at build time.
Writing HTML directly gives you more control over semantics and attributes — useful for complex interactive pages or when you need specific ARIA roles, custom data attributes, or precise CSS class placement. For everything in between, many teams adopt a hybrid approach: Markdown for prose content, HTML snippets for custom components. This tool handles the Markdown-to-HTML step so you can see exactly what tags your Markdown produces before committing to a publishing pipeline.