iCloud
What is iCloud Notes?
You can use Notes on iCloud.com to capture a quick thought or save something important or interesting for later.
Note: You can only use Notes on iCloud.com to work with notes stored in iCloud, not the notes in other accounts you may have, such as a Yahoo or Google account.
To use Notes on iCloud.com, go to icloud.com/notes and sign in with your Apple ID. Make sure you use a browser recommended in the Apple Support article System requirements for iCloud.
If you are using another iCloud feature, you can switch to Notes by tapping the feature’s name at the top of the iCloud.com window.