Is there any tool that converts an MT4 file to an MT5 file?

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If so, I would love to hear opinions on the tool based solely on experience.
 
Smart Algotrade:
If so, I would love to hear opinions on the tool based solely on experience.

I have converted several MQL4 codes to MQL5 code using the MQL5 Lite AI Assistant that is integrated into MT5.

The best prompt that I've used is: "Rewrite the following MT4 indicator code for use in MT5: [followed by the copied and pasted MQL4 code]."

The Assistant tended to attempt a line-by-line conversion when I used the word, convert, so I try to avoid that. That created a "doom loop" of never ending corrections. What I really want is for the Assistant to get a holistic concept of the indicator, and then write 100% new code.

 
There is no reliable file-level converter. If by file you mean only an EX4 binary, it cannot be legitimately converted; you need the authorized MQ4 source. Even with source, I would treat the job as a port/rewrite, not syntax conversion.

Keep the MT4 version as the behavioral oracle and compare fixed fixtures on the same symbol, timeframe and history. For an indicator, check buffer values on selected bars, warm-up, prev_calculated behavior, closed-bar output and reload parity. For an EA, explicitly map the MT4 order pool to MT5 orders, deals and positions, then test both netting and hedging assumptions, partial fills and trade retcodes.

An assistant can accelerate the first draft, but a clean compile is not proof of equivalent behavior. The useful acceptance test is: identical deterministic inputs, documented platform-specific exceptions, and matching outputs after restart/reload.
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