You can find experienced algorithmic traders on freelancing platforms like MQL5.com, Upwork, or Freelancer to rewrite the logic for you. Method 3: Use the MT4 Strategy Tester to Rebuild Logic

While this method is convenient, it comes with a significant : you are uploading a proprietary file to a third-party server. You have no control over what is done with your file, and the decompiled code could be stored, analyzed, or even redistributed without your knowledge. This method should be used with extreme caution and never for files that contain sensitive or proprietary trading logic.

Regardless of the method you choose, make sure to test the decompiled MQ4 file thoroughly to ensure it works as expected.

As of the latest MetaTrader build (Build 1350+), MetaQuotes has significantly hardened the security of EX4 files. Here is why free conversion is nearly impossible today:

Cons: