Link: Dex Editor Plus

Use an archive viewer or modification tool to open the APK structure. Locate the classes.dex files.

Make your desired changes to the code or resources. Once finished, use the application's internal compilation or save function to repackage the altered DEX structure. dex editor plus link

Unlike standard text editors, Dex Editor Plus allows you to: bytecode into readable Smali code. Use an archive viewer or modification tool to

Seamlessly translates optimized bytecode into human-readable Smali code or Java-like syntax. dex editor plus link