If you need to modify the tool or want the absolute latest code from the repository, you can build d8.jar from source.
Method 1: Locate d8.jar in your Local Android SDK (Recommended)
Once you have D8 (or a JAR containing D8), you can use it to convert Java bytecode to DEX format.
If you need the absolute latest version or a customized build, you can compile it yourself: Clone the R8 repository . Use the included script: python tools/gradle.py d8 . The output will be located in build/libs/d8.jar . Key Benefits of D8 Next-generation Dex Compiler Now in Preview
This is the method most developers use without even realizing it. When you install version 28.0.1 or higher , the d8 executable (and the underlying d8.jar ) is placed in your SDK directory. This is how your build.gradle files access D8 when you compile your project. d8.jar download
: It produces more optimized output, resulting in smaller application sizes.
The Android SDK packaging for versions 31.0.0 and higher is missing dx.bat and dx.jar files, but these files exist under different names ( d8.bat and d8.jar )
The Ultimate Guide to D8.jar: What It Is, How It Works, and How to Download It
It produces more compact bytecode, helping to reduce the overall APK size. If you need to modify the tool or
java -cp d8.jar com.android.tools.r8.D8 --lib path/to/android-sdk/platforms/android-XX/android.jar MyClass.class Use code with caution.
: D8 can compile DEX files up to 30% faster than its predecessor, DX.
By default, Android Studio has used D8 as its DEX compiler since version 3.1, which was released in 2018.
To ensure this method works, open your Android Studio, go to , navigate to the SDK Tools tab, and make sure the latest version of "Android SDK Build-Tools" is installed and checked. Use the included script: python tools/gradle
--min-api : Optional flag (e.g., --min-api 21 ) that tells the compiler your minimum supported Android API level, allowing D8 to desugar modern Java code perfectly for older devices.
tool is the modern Android dexer that converts Java bytecode into DEX bytecode for the Android Runtime (ART). It serves as the faster, more efficient replacement for the legacy Android Developers Locating and Downloading There is no standalone direct download link for a
The search for "d8.jar download" reveals an evolution in Android's build tooling. While D8 isn't distributed as a simple standalone JAR in the traditional sense, there are multiple reliable ways to obtain it:
If you need to modify the tool or want the absolute latest code from the repository, you can build d8.jar from source.
Method 1: Locate d8.jar in your Local Android SDK (Recommended)
Once you have D8 (or a JAR containing D8), you can use it to convert Java bytecode to DEX format.
If you need the absolute latest version or a customized build, you can compile it yourself: Clone the R8 repository . Use the included script: python tools/gradle.py d8 . The output will be located in build/libs/d8.jar . Key Benefits of D8 Next-generation Dex Compiler Now in Preview
This is the method most developers use without even realizing it. When you install version 28.0.1 or higher , the d8 executable (and the underlying d8.jar ) is placed in your SDK directory. This is how your build.gradle files access D8 when you compile your project.
: It produces more optimized output, resulting in smaller application sizes.
The Android SDK packaging for versions 31.0.0 and higher is missing dx.bat and dx.jar files, but these files exist under different names ( d8.bat and d8.jar )
The Ultimate Guide to D8.jar: What It Is, How It Works, and How to Download It
It produces more compact bytecode, helping to reduce the overall APK size.
java -cp d8.jar com.android.tools.r8.D8 --lib path/to/android-sdk/platforms/android-XX/android.jar MyClass.class Use code with caution.
: D8 can compile DEX files up to 30% faster than its predecessor, DX.
By default, Android Studio has used D8 as its DEX compiler since version 3.1, which was released in 2018.
To ensure this method works, open your Android Studio, go to , navigate to the SDK Tools tab, and make sure the latest version of "Android SDK Build-Tools" is installed and checked.
--min-api : Optional flag (e.g., --min-api 21 ) that tells the compiler your minimum supported Android API level, allowing D8 to desugar modern Java code perfectly for older devices.
tool is the modern Android dexer that converts Java bytecode into DEX bytecode for the Android Runtime (ART). It serves as the faster, more efficient replacement for the legacy Android Developers Locating and Downloading There is no standalone direct download link for a
The search for "d8.jar download" reveals an evolution in Android's build tooling. While D8 isn't distributed as a simple standalone JAR in the traditional sense, there are multiple reliable ways to obtain it: