IconVault's Markdown Editor is a complete writing environment, not just a previewer. A full toolbar inserts headings, bold, italic, links, images, code blocks, quotes, lists, task lists, and tables around your selection, while the live split-view preview renders sanitized HTML as you type. It is free and runs fully in your browser.

Your draft autosaves to localStorage as you write, so a closed tab never loses work, and the header tracks words and characters in real time. When you are done, export a clean .md file, a standalone HTML document, or copy the rendered HTML for your CMS. Distinct from the markdown-preview viewer, this is the tool you write in.