If you understand the core strategy of an indicator or EA, it is often faster and safer to program the logic yourself or hire a developer via the official MQL5 Freelance marketplace.
What are you trying to understand or modify? Share public link ex4 to mq4 decompiler github 2021
To understand why decompiling is so difficult, it helps to understand how MetaTrader handles files. If you understand the core strategy of an
Platforms like MQL5.com host thousands of vetted programmers. You can show them the behavior of an indicator, and they can code a clean, legal version from scratch. Platforms like MQL5
Before attempting to reverse engineer an EX4 file, you must consider the legal boundaries of software development. Intellectual Property
Commercial EAs are protected by copyright laws. Decompiling a commercial EA to distribute or resell it is illegal piracy.