In the world of MetaTrader 4 (MT4) development, the "EX4 to MQ4" conversion is a topic shrouded in both technical complexity and ethical debate. If you are searching for an version, you are likely trying to recover lost source code or study the logic of a compiled Expert Advisor (EA).
If you purchased the EA, reach out to the vendor. Some provide source code upon proof of purchase (even with an extra fee). ex4 to mq4 decompiler 40432 updatedl