MQL4 vs MQL5 export: what you actually get

Two kinds of export

Source export gives you readable MQL4/MQL5 code you can inspect, version and modify. Compiled export gives you an executable file that runs directly in MetaTrader but cannot be edited.

What travels with the code

• Indicator and module references.
• EA inputs exposed for optimisation.
• Stop loss, take profit and money management settings.
• Symbol and timeframe assumptions.

When to choose source

Choose source export when you need code review, internal version control or further development by your own team.

When to choose compiled

Choose compiled export when a trader needs to run the EA without access to the source, or when your process requires a locked build.