Understanding the motivation helps clarify why this topic is so popular. Common reasons include:
For educational research only, you can use a disassembler (like IDA Free or Ghidra) to view the assembly code of an EX4. This is not MQ4 and requires deep programming knowledge. It will not give you a working script.
Attempting to convert these files for free carries significant risks that often outweigh the benefits:
If you’ve used MetaTrader 4 (MT4), you’ve likely encountered two file types: How To Convert Ex4 To Mq4 Free
A common question among traders is: “How can I convert an EX4 file back to MQ4 for free?”
The short answer is: You cannot reliably or legally convert EX4 to fully editable MQ4 source code for free. Here’s why.
Open the decompiled MQ4, press Ctrl + A (select all), then Ctrl + Shift + F (format). This fixes indentation and makes the messy code slightly more readable. Understanding the motivation helps clarify why this topic
You will find free tools online (EX4 to MQ4 decompilers, DLL patches, or "trial" software). Here is the honest assessment of each:
| Tool Type | Claim | Reality | |-----------|-------|---------| | Free online converters | Upload EX4 → receive MQ4 | Almost always scams or malware. They steal your EX4 file. | | Cracked decompilers | Full conversion for free | Often contain viruses/keyloggers. Produce unusable, messy code. | | Trial versions | Limited free conversion | Usually watermark output or fail on modern EX4 (build 600+). |
Important technical fact: MetaQuotes (the developer of MT4) has strengthened EX4 encryption since build 600 (2014). Most free tools only work on extremely old EX4 files (pre-2014) and will fail or crash on modern ones. For educational research only, you can use a
Before you risk malware and legal trouble, consider this: Contact the original developer.
Many developers are reasonable. Explain your situation:
Some developers will say no. Others will charge a fee (e.g., 50% of the original price). A generous few will send it for free. This is the only 100% safe, legal, and free method that yields perfect code.