Builds ready-to-paste HTML: an accessible table from CSV rows (header row, scope=col, optional caption), a form from name|type|label|required lines with labels wired to inputs, selects (select:A,B,C), textareas, checkboxes and autocomplete hints, buttons or link-buttons, labelled inputs, lists, links (rel=noopener for new tabs), lazy-loaded images, and a complete SEO/Open Graph/Twitter meta set from key = value lines. Every value is escaped and the markup is indented. Everything runs locally.