Intro to Keynote for iCloud
Keynote for iCloud is a web app for creating and editing presentations on a Mac computer or Windows device (using a supported browser). Presentations you create in Keynote for iCloud are automatically available in the Keynote app on any Mac, iPhone, or iPad where you’re signed in to the same Apple Account.
This integration across devices works in both directions. You can create or edit a Keynote presentation anywhere—on a computer, iPhone, iPad, or on the web—and the changes show up everywhere. You can also share a link to a presentation with others, then edit the presentation together in real time.
After you sign in to iCloud.com (using the sign-in information for your Apple Account) and click Keynote, you see the presentation manager. From here you can create, open, and share presentations, and more.
For more information, click one of the links below, or use the search field at the top of the page.