An editor whose preview tells the truth
Most online Markdown editors preview your text as a web page with the editor's own styling. That is fine while you write, but the moment you export to Word the document looks different: the font changes, tables grow borders, code blocks lose their shading, and headings that looked large online come out small. You end up fixing the export by hand, which was the thing Markdown was supposed to spare you.
This editor renders the preview with the same engine that produces the .docx. The pane on the right uses the body font you picked, the A4 or Letter page width you picked, and the exact heading sizes, table borders and code shading that will be written into the file. What you see is not an approximation of the document, it is the document, before it has been zipped.
Markdown support
CommonMark and GitHub-flavored Markdown: nested lists, ordered lists that restart, task lists, pipe tables with alignment, fenced code with a language tag, blockquotes, footnotes, images by URL, and front matter that is stripped rather than printed. LaTeX between dollar signs and Mermaid code blocks are rendered live in the preview so you can check them; exporting them into the file is a Pro feature.
Autosave without an account
Your draft is written to this browser's local storage after every change. Reopen the page tomorrow and the text is still there. Nothing is sent to a server, which also means we cannot read it and there is nothing to breach. If you want drafts that follow you between devices and a history of past exports, that is what a Pro account adds.
Keyboard first
Tab indents list items, Shift-Tab outdents. Ctrl-B and Ctrl-I wrap the selection in bold and italic markers. Ctrl-K inserts a link. Ctrl-Enter downloads the current export format. The editor is a plain textarea underneath, so every browser shortcut you already know for text works too.
From editor to hand-in
When the document is right, choose Word, PDF or HTML and download. The Word file has real heading styles so its table of contents and navigation pane work. The PDF paginates properly, with headings kept next to their text. The HTML is clean and semantic. Or skip the file altogether: "Copy as rich text" puts formatted content on the clipboard that pastes cleanly into Google Docs, Outlook, Notion and Confluence.
Why not just use Word?
Because you are already writing in Markdown. AI assistants produce it, GitHub speaks it, Obsidian and Notion export it. Rewriting a page of Markdown as Word formatting by hand takes ten minutes and gets done badly. Pasting it here and pressing download takes ten seconds.