Markdown Editor is a split view. You type Markdown on the left and see the formatted preview on the right. When the draft is ready you can download it as a .md file or copy the rendered HTML into another tool.
Use it for a README, release notes, or a note with headings, lists, links, and code blocks. The parser is simple. It is not a full CommonMark engine, so some GitHub-flavored extras may render differently.
The text lives in this tab. There is no FileTools Kit document account, and a refresh can clear unsaved work, so download the .md file before you close the page.