The license used means you can use it with the code of your commercial Delphi applications without spending any money. The best open-source Delphi code obfuscator in 2021 is Pythia. In case the program was already created and there are some issues that need to be fixed, decompiling it might be the thing to open the way towards identifying. I have a program written in delphi that I wish to decompile. Decompiling Delphi Program 5,7/10 740 votes.
DeDe (Delphi Decompiler) brags on performing this particular task fast and neat. Decompiling executable files, no matter the programming language they have been compiled in, is a tedious job. I came across this on web site and thought it useful to add it a a reference here.