1. AndroGuard, a Python-based reverse engineering and analysis framework, is mainly used for static analysis of Android applications.
2. apktool, APK unpacking and packaging related tools.
3. dexdump, a tool for parsing dex files included in the Android SDK.
4. Andbug, an Android Java dynamic debugging tool based on the Java Debugging Connection Protocol (JDWP).
5. Drozer, a scalable and modular Android APP security testing framework.
6. UPX, a famous packing tool, supports a lot of file formats, and the compression efficiency can reach 50% -70%.