Droid ASC: High-Performance On-Demand Android Decompiler Front-End for Mobile Security & AI Agents

MG1937 open-sourced Droid ASC, an ultra-fast Android decompiler front-end designed for AI agents and mobile security researchers. Instead of inflating massive APKs and building gigabyte-sized index databases, ASC treats the compiled APK as a direct queryable database by probing Deflate bitstreams with Huffman lookup tables, leveraging R8 compiler optimizations for cross-DEX code searches, and locating instructions in O(1) time. In benchmarks on a 352MB commercial APK, ASC executes global cross-reference searches in 1.79s and decompiles target classes in 177ms using just 141MB of RAM.

Radically reduces Android reverse-engineering overhead from tens of minutes and gigabytes of memory to milliseconds and megabytes, providing an ideal, stateless code analysis primitive for autonomous security agents and vulnerability researchers.