diagram.now is a browser-based diagram editor for creating flowcharts, UML diagrams, entity-relationship diagrams, BPMN process diagrams, cloud architecture diagrams, network diagrams, mind maps, and wireframes. It operates directly in web browsers without requiring installation. Users can start with blank canvases or built-in templates for organizational charts, kanban boards, and more. Shape libraries support various diagram types, and imports from Visio, Lucidchart, Gliffy, Mermaid, CSV, and SQL are available. Cloud architecture libraries include AWS, Azure, and Google Cloud shapes. Diagrams can be exported as PNG, SVG, PDF, JPEG, WebP, XML, JSON, or encoded URLs. Features include version control, collaborative tools like commenting and live cursor sharing, and custom shape libraries saved locally. Adaptive color modes adjust for light or dark environments, and Confluence integration allows embedding and editing diagrams directly within pages.