Canvas One free-form board for boxes, arrows, text and pasted screenshots. Built on Excalidraw. Rich text A document with headings, lists, tables and images. Tab adds table rows. Diagram Flowcharts and architecture diagrams with draw.io, an open-source editor. Split Rich text on the left, canvas on the right. Drag the divider to resize. Mermaid Write a Mermaid diagram as text and see it render live. Open a file Word, PDF, text, Excel or CSV. Opens read-only, or editable for sheets.