If you are a hobbyist trying to learn from a free, unprotected indicator, using a free decompiler on an offline computer is a reasonable approach. You will get something workable after some manual cleanup.
If you are a professional managing client funds or relying on a commercial EA, free decompilation is too risky. The hidden bugs, malware threats, and legal liabilities outweigh the cost savings. Instead, either pay for a reputable decompilation service or (better yet) rewrite the strategy from scratch based on its observed behavior. How To Convert Ex4 To Mq4 Free
So, how do you get from .ex4 to .mq4 —and can you do it ? If you are a hobbyist trying to learn