D8

is the command-line tool utilized by Android Studio and the Android Gradle Plugin to compile Java bytecode ( .class files) into Dalvik executable ( .dex ) bytecode that runs on Android devices. It replaces the older dx tool, offering faster compilation times and smaller .dex files. How to Obtain d8.jar

How to Use d8.jar

You won't typically find a direct, standalone download for because it is part of the R8 project and is usually bundled within the Android SDK. is the primary dexer used to convert Java bytecode into files for Android applications. Stack Overflow Where to Find d8.jar Android SDK (Local):

Unlike standard executable tools, d8.jar is a Java archive. You must run it using the Java Runtime Environment (JRE).