Awesome

BundleDecompiler

BundleDecompiler is a tool for reverse engineering Android .aab files.
This tool decode .aab resources(.xml's) and sources(.dex's) and build also.

USAGE: ApkDecompiler < command > [options]

BundleDecompiler decompile or d
BundleDecompiler build or b
BundleDecompiler sign-bundle
BundleDecompiler sign-universal

COMMANDS

decompile         Decompile the provided .aab resources
--in=             Input app bundle(.aab) file
--out=            Output decompile Directory

 build            build the provided decompiled resources
--in=             Input decompiled Directory
--out=            Output app bundle(.aab)  file

 sign-bundle      sign-bundle app bundle
--in=             Input app bundle(.aab) file
--out=            Signed app bundle(.aab) file

 sign-universal   universal for sign-bundle app bundle
--in=             Input app bundle(.aab) file
--out=            Signed universal apk(.apks) file

EXAMPLE:

java -jar BundleDecompiler.jar decompile       --in=input_app.aab   --out=output_dir
java -jar BundleDecompiler.jar build           --in=input_dir       --out=output_app.aab 
java -jar BundleDecompiler.jar sign-bundle     --in=input_app.aab   --out=output_app.aab 
java -jar BundleDecompiler.jar sign-universal  --in=input_app.aab   --out=output_app.apks

DOWNLOAD JAR

BundleDecompiler.jar