By default, d8 outputs a classes.dex file in your current working directory. Use the --output flag to change this destination or to package the output directly into a ZIP or JAR archive.
The JAR moved between Build-Tools versions. In older versions (≤ 28.0.0), D8 was still experimental. Use Build-Tools 29.0.0 or higher. Also look inside:
The safest, official, and most reliable way to get d8.jar is directly from Google via the Android SDK. How to Download and Extract d8.jar Safely d8.jar download
If you already use Android Studio or have downloaded the SDK: Open your SDK root directory. Navigate to the build-tools folder.
# Clone the R8 repository git clone https://r8.googlesource.com/r8 cd r8 By default, d8 outputs a classes
Building from source gives you the latest features and a self-contained JAR.
java -cp "/path/to/build-tools/ /lib/d8.jar" com.android.tools.r8.D8 MyClass.class Use code with caution. Common Command Flags In older versions (≤ 28
If you are developing Android applications, you have likely encountered the term . It is a crucial component of the modern Android build pipeline, responsible for converting Java bytecode into Dex bytecode that Android devices can execute.
D8 is primarily a dex compiler that converts bytecode to DEX. R8 is a code shrinker that also produces DEX output. R8 can replace both ProGuard and D8 in your build pipeline.
While many developers search for a standalone d8.jar download, it is typically bundled within the or as part of the R8 project . 1. Official Android SDK (Recommended)