Write in Markdown on the left, watch a publish-ready document build itself on the right. Everything stays in your browser — nothing is ever uploaded.
Write & formatUse the toolbar for headings, lists, tables, links, images, and math — or just type Markdown directly.
Open SettingsTurn on a cover page and table of contents, pick an editorial theme, and tune fonts, colors, and page size.
PublishHit Publish PDF for a one-click download, or use File to export HTML or the raw Markdown.
Folio uses local storage in your browser to autosave your document and remember your
preferences. This stays on your device and is never uploaded — no tracking cookies are used.