Write for a clear document structure
Start with a main heading, then use section headings and short paragraphs. Separate lists and code blocks with blank lines. Basic tables work best for short fields; long narrative text is easier to read as paragraphs. Paste Markdown or choose a UTF-8 MD/TXT file within 100,000 characters and 400 KB.
Render after meaningful edits
Choose Render preview to generate the reading copy. The action is explicit rather than parsing a large document on every keystroke. Editing the source discards the previous preview and download buttons, so an old rendered document cannot be mistaken for the latest draft. Render again after your final edit.
Know what is deliberately excluded
The preview supports headings, paragraphs, lists, emphasis, blockquotes, code and basic tables. Images, remote embeds, forms, scripts and custom styles are removed. Links retain their text but are not active. This makes the result self-contained and avoids fetching third-party content; it is not MDX or an arbitrary HTML application host.
Keep two different kinds of output
Download Markdown for future editing: it retains the original source, including content omitted from the preview. Download HTML for a sanitized reading copy with built-in styles. Open the HTML in your own browser to inspect its typography or use your browser’s print controls. There is no built-in PDF export and no promise of exact pagination across browsers.
Close the handoff safely
Check the final HTML, especially code indentation, table headings and any text that originally depended on an image or link. Explain omitted references in prose if recipients need them. There is no autosave, account history or shared editing link. Save the MD file before clearing or leaving the page.