Gadgeter

An on-device Android APK patching tool for automating Frida Gadget injection.

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Gadgeter is a powerful Android application designed to automatically inject the Frida Gadget into any APK directly on your device. Whether you want to debug, reverse-engineer, or analyze an app without a rooted device, Gadgeter simplifies the entire process. Just select an APK, and Gadgeter will handle the decoding, injecting, repackaging, and signing—outputting a ready-to-run, debuggable masterpiece!

Screenshots

Features

• On-Device Processing: No PC required. Everything from unpacking to repackaging happens directly on your Android device.
• App Selection: Pick an already installed app or choose a local APK file via the Storage Access Framework (SAF).
• Architecture Auto-Detection: Automatically detects the target architecture (e.g., arm64-v8a, armeabi-v7a), with a manual selection override available.
• Frida Gadget Management:
  • Download specific Frida versions remotely from GitHub.
  • Manually specify a local .so gadget file.
  • Use the built-in default gadget.
• Custom Configuration: Easily customize the .so name or provide a JSON configuration file for the Frida Gadget.
• Automated Injection: Analyzes and modifies the SMALI code to insert System.loadLibrary("frida-gadget") and adds the necessary INTERNET permissions.
• Repackage & Sign: Automatically repackages the injected components and signs the final APK using a built-in certificate.

How it works

1. Decode: Extracts the APK structure.
2. Inject: Places libfrida-gadget.so into the right /lib/<abi>/ folder.
3. Patch SMALI: Modifies the application's entry point to load the Frida library.
4. Permissions: Patches AndroidManifest.xml to ensure internet access.
5. Re-build & Sign: Re-assembles everything into a valid, aligned, and signed APK ready for installation.