Last updated: 2025 – D8 version 8.x and higher.
To ensure compatibility with older Android devices, specify the minimum API level: d8.jar download
| Option | Effect | |--------|--------| | --release | Generate release‑optimized DEX (no debug info). | | --lib | Path to Android runtime (e.g., android.jar ) for linking framework classes. | | --output or -o | Output directory (default is current dir). | | --min-api | Minimum Android API level (e.g., --min-api 26 ). | | --debug | Keep debug information. | Last updated: 2025 – D8 version 8
Write a to automate your .class to .dex conversion. Troubleshoot specific compilation errors you're seeing. d8 | Android Studio | | --output or -o | Output directory
--release : Compile without debugging info (default is --debug ).
johnjohndoe/r8: D8 dexer and R8 shrinker. Outdated fork from
d8.jar is a command-line tool from the Android build system that compiles Java bytecode ( .class files) into DEX bytecode ( .dex files) for execution on the Android Runtime (ART). It replaces the older dx tool, offering faster compilation, better optimizations, and support for Java 8+ language features (like lambdas and method references).