If you only need to use an indicator's signals within another EA (rather than editing the logic), do not decompile it. Instead, use the iCustom() function in your own MQ4 code to call the values directly from the EX4 file. Safer and Legal Alternatives
Websites claiming to offer free online conversion are often malicious. Uploading a file to an untrusted server introduces several risks:
Websites that ask you to upload an .ex4 file to "convert it online for free" are often deceptive. Interacting with them exposes you to serious risks: convert ex4 to mq4 online free fix
Upload your .ex4, choose MQL4, and check the generated pseudocode. B. Community Support (Forex Factory)
If you have lost your original source code or want to modify an old indicator, you might find yourself searching for a way to . If you only need to use an indicator's
You will find only scams. If you need to modify an EA/indicator and lost the source code:
If your EX4 file is old (pre-2014), you might successfully convert it using free software, but you may encounter errors when trying to compile it in the modern MetaEditor. Uploading a file to an untrusted server introduces
If you upload a profitable, proprietary commercial EA to a random web form, you are giving the site owners your strategy for free.
If you are a developer looking to prevent others from reversing your work, use these industry best practices to secure your code.