- Knowledge Base
The OneNote Web App lets you capture and access notes and ideas from any web browser. With no download required, you can use it anywhere: at your friend’s house, at the airport, or even on a device that doesn’t have OneNote already installed. If you’re new to OneNote, it’s fast and easy to give OneNote a quick spin on the web. You also can download it for your Windows, Windows Phone, iPhone, iPad, or Android device at onenote.com.