Project Spartan is the codename for the new default browser built for Windows 10. It provides WebNote for native page annotation and sharing capabilities, reading view and reading list support, and Cortana integration that delivers more info and task support throughout the browsing experience.
For web developers, Project Spartan brings an all new rendering engine, built to be interoperable with the modern web. Project Spartan is a clean break from the past focusing on interoperability with modern web standards and browsers so you can write modern markup once for all browsers. Project Spartan and its new engine will be updated as a service with Windows 10, so you be sure that everyone browsing your site or using your web app with Project Spartan is always on the same page.
See what’s new for developers
Project Spartan Dev Guide
Our all-new browser has an all-new engine. See what’s new and improved in the Windows 10 web platform.