Some popular Ex4 to Mq4 decompilers on GitHub include:
: Projects like AdibSadman192/Ex4-to-Multiple-Readable-Language-Converter use disassembly engines to extract metadata and generate "pseudocode" (approximated logic). This code usually cannot be recompiled without extensive manual rewriting. Guide to Using GitHub Repositories for EX4 Analysis Ex4 To Mq4 Decompiler Github