Microsoft Edge (or simply nicknamed Edge), based on the Chromium open-source project, also known as The New Microsoft Edge or New Edge, is a proprietary cross-platform web browser created by Microsoft, superseding Edge Legacy. In Windows 11, Edge is the only browser available from Microsoft.

First made available only for Android and iOS in 2017. In late 2018, Microsoft announced it would completely rebuild Edge as a Chromium-based browser with Blink and V8 engines, which allowed the browser to be ported from Windows 10 to macOS. The new Edge was publicly released in January 2020, and on Xbox as well as Linux in 2021. Edge was also available on Windows 7 and 8/8.1 until early 2023.

In February 2023, according to StatCounter, Microsoft Edge became the third most popular browser in the world, behind Apple Safari and Chrome, while as of January 2025, Edge is second most popular PC/desktop web browser with Safari sliding to 3rd place (including 2nd place in the U.S. or rather there tied with Safari). By 2022, Edge was used by 11% of PCs worldwide.