This tool is a part of ADK software, thread can be found here (For summary read Introduction part below). Read Instructions at the end on how to install this.
This Utility adds option to right click decompile, compile options for some extensions (like apk, img, dat, br, file_context.bin, payload.bin) so that you don't have to open any kind of kitchen again and again move files there and select options to unpack. See screenshots above you will get an idea about what is it..
Also it's not a separate tool it is a part of ADK. Read Installation and download instructions from below and check 2nd post for usage instructions.
And yes the main part since ADK kitchen is not completely free it works for only 7 days as a trial after that you will have to use demo version which has certain feature disabled. Not to worry this utility will work fine but there will be a pop-up notifying to buy license.
What is ADK?
Well if I've to say, ADK (Android Development Kit) is a complete Windows based GUI application which allows you to edit Android apk files, ROM zips, boot or recovery images, Android Firmware and also to create TWRP/CWM flashable recovery zips easily. It's like a complete Android Kitchen with lots of mods, patches, scripts, templates, rich text editor, etc. like an IDE. For more info visit official thread here.
Well here you go,,,
- Unpack/Repack APK (including smali), IMG, DAT, BR files.
- Generate Java Source for APK.
- View APK Info like App name, Package, permissions, icon, etc.
- Import App as dependency for system apk.
- Support Android 9.0 ROM.
- Supported lists are: System, Vendor img, dat, br and Recovery or Boot images)
Changelog as per release 22.214.171.124 (17th January 2019)
*Added: Option to unpack Payload.bin
*Added: Option to convert file_contexts.bin to file_context
*Added: Support for Android 9.0 images.
*Updated: APK decompiling so as to create project for ADK.
* Unpack option is not showing for .IMG file (on Win8.1 and lower).
Current Fix:- Open CMD and type "contexts d path-to-img" (without quotes).
To use these feature you must have ADK to be installed. So read steps below (noob friendly) in order to get it. If you want to know what is ADK read Introduction Part above.
Step 1: Install ADK
Grab a latest release of the software from above link.
Step 2: Extract the ZIP and install setup.exe as we normally do.
Do not install the software in C:\Program Files or Program Files (x86) folder.
Step 3: Launch ADK from desktop shortcut and go to Help > Plugins & Patches.
Keep your internet connection ON to do this steps.
Step 4: Search for ADK Context [Script] and install it.
First click on Download option then after click on Install it. Installation will be like normal setup file.
Step 5: Once installed you can close ADK and use the plugin.