Compare two texts, documents or code snippets line by line. Added, removed and unchanged lines are color-coded instantly — and your data never leaves your browser.
It transforms Markdown — the lightweight markup used on GitHub, dev.to, Notion and forums — into clean semantic HTML: h1–h6 headings, ordered and bullet lists, fenced code blocks with language classes, inline code, bold, italic, links, blockquotes and horizontal rules.
Writers and developers need HTML for blog posts, email templates, documentation pages and CMS content. Writing in Markdown is much faster, and this tool converts it in one click — no server, no paste-through-a-website, no preview flicker.
The converter is escape-first: raw HTML in your Markdown is escaped, not executed, so pasting untrusted text cannot inject scripts into the preview. Everything runs locally in your browser — nothing is uploaded.