The Android Flash Tool will ask for permission to access ADB keys in a pop-up window, which is necessary to install software on your phone. You’ll need to tap “OK” to proceed with this process.

Android Flash Tool also enables you to "flash a phone from another phone" as Google Staff Software Engineer Sam Saccone said in a tweet.

For the Android 11 Developer Previews and Beta 1, Google has repurposed the Android Flash Tool to allow Pixel owners to install the pre-release software onto their phone.

Today, Google has unveiled the Android Flash Tool as a simple way to try any AOSP build on your Pixel phone, right from your browser!