The Safari web browser is the default web browser for the iPhone, iPad, and macOS. The browser was first released by Apple in 2003, and was briefly offered on Windows from 2007 to 2012. The Safari browser exploded in popularity with the iPhone and iPad, and currently holds approximately 54% of mobile browser usage in the United States.

Safari is, in most ways, like any other popular browser. Users can browse websites, save favorites, and open multiple sites in tabs. Safari was built using the WebKit engine and was one of the first web browsers to support the new HTML 5 standard. It was also one of the first browsers to disable support for Adobe Flash by default, while mobile versions of Safari have never supported Flash.

Safari on Mac OS is currently at version 11.1, which includes an upgrade to Intelligent Tracking Prevention. This feature helps prevent a specific website from following pages viewed on other websites, a process called cross-site tracking. Safari on iOS shares its version with the iOS version, which is currently at 12.1.

While it may be hard to tell the difference between Google Chrome, Apple Safari, or Microsoft Edge at first, the Safari browser has a few key features that set it apart from the rest. One of them is the ability to format articles to make them easier to read.