Sign in and use iCloud.com
You can use iCloud from anywhere by signing in to iCloud.com using a web browser recommended in the Apple Support article System requirements for iCloud.
For a list of apps and features available on a computer, see What is iCloud.com?
Sign in to iCloud.com
Go to iCloud.com, enter your Apple ID (or another email address or phone number on file), then enter your password.
If prompted, follow the onscreen instructions to verify your identity by entering a code sent to a trusted device or a trusted phone number.
See the Apple Support article Two-step verification for Apple ID.
If you don’t see the apps or data you’re looking for
Depending on the device and account you use to sign in to iCloud.com, you have access to different apps and features. If you don’t see what you’re looking for, see if any of the following are true:
You signed in on a mobile device: If you sign in to iCloud on a tablet or a phone, you have access to a different set of apps and features than if you sign in using a computer.
You signed in using a different Apple ID: If you have multiple Apple IDs, make sure to sign in to iCloud.com with the account that has the data you’re looking for. See Get more iCloud features.
Switch to a different app or feature on iCloud.com
After you sign in to iCloud.com, you can easily access apps, iCloud+ features and more. Do any of the following:
On the iCloud.com homepage, click the tile of the app or feature you want to use.
Tip: You can also click within a tile — for example, click a note in the Notes tile to open that note directly.
On iCloud.com, click
in the toolbar, then click another app or feature.
Sign out of iCloud.com
Click your Apple ID photo or 
in the top-right corner of the iCloud.com window, then do one of the following:
Sign out from the browser you’re using now: Choose Sign Out.
Sign out from every browser where you’re currently signed in: Click iCloud Settings, click Sign Out Of All Browsers, then click Sign Out.