Ctrl as primary modifier. All Keynote web app shortcuts on Windows use Ctrl. This is consistent with other Microsoft-ecosystem and web application conventions on Windows.
Core slide editing. Creating and managing slides, basic text formatting, and moving objects on a slide are keyboard-accessible. Most common editing operations have shortcut support in the web version.
Presentation delivery. Starting and controlling a slideshow is supported in the Keynote web app on Windows. Advancing slides, going back, and ending the presentation can be done by keyboard.
Feature limitations. Some Keynote-specific features, Magic Move transitions, Presenter View with full controls, complex build configurations, are more limited in the web version. The web app covers the core workflow; advanced Keynote features require the native Mac app.
Browser shortcut conflicts. Ctrl+W closes the browser tab; Ctrl+T opens a new one. These browser shortcuts take priority over any matching Keynote web app shortcut.
Working with .key files on Windows. Files created in Keynote on Mac open in the web app when accessed at iCloud.com on Windows. Exported formats (PDF, PowerPoint) are available from the web app's File menu for users who need to convert to a Windows-native format.