EX4 → EX5 Converter
Convert your MetaTrader EX4 files to EX5 format for MetaTrader 5 — with full preservation of the original functionality.
The official online service for converting EX4 files (MT4) to EX5 format (MT5).
MetaTrader is the world's most widely used trading platform among retail FOREX traders. For years, MT4 — and its compiled file format EX4 — dominated the market. Today, MT5 is rapidly gaining ground as brokers migrate their infrastructure to the newer platform and phase out MT4 support entirely.
This shift makes EX4 to EX5 conversion more relevant than ever. Traders who rely on custom Expert Advisors, indicators, or scripts built for MT4 need a way to bring those tools into MT5 — without starting from scratch.
The MetaTrader platform does not include a native conversion path between the two formats, and for good reason: the underlying programming languages — MQL4 and MQL5 — are fundamentally different, making fully automated conversion impossible.
In March 2026, a solution has been finally introduced. It combines reverse engineering and dynamic code analysis to bridge this gap — converting EX4 files to EX5 while preserving their full original behavior.
Is it possible to convert EX4 to EX5 without the source code?
Yes. Our service converts directly from the compiled .ex4 file — the original source code (.mq4) is not required, and no decompilation is needed. This is the key difference from hiring a freelance developer to rewrite the logic manually in MQL5, which is expensive, time-consuming, and produces a different product.
How does the conversion work?
Once the file with the .ex4 extension has been uploaded, it will be placed in the conversion queue. This process takes some time. The wait may be up to three working days. A link to download the file with the .ex5 extension will be sent by email. See the full step-by-step guide.
How much does it cost?
The conversion fee is 50 USDT per file.
What is an EX4 file?
An EX4 file is a compiled executable for the MetaTrader 4 platform, built using the MQL4 programming language. This format is used to distribute Expert Advisors (trading robots), custom indicators, and scripts. The file contains ready-to-run machine code and requires no installation — it is placed directly into the appropriate MT4 terminal folder to run.
What is an EX5 file?
An EX5 file is the MetaTrader 5 equivalent of EX4 — a compiled executable built using MQL5. Despite serving the same purpose, the two formats are not compatible: MT5 cannot run EX4 files, and MT4 cannot run EX5 files. The difference goes deeper than file format — MQL4 and MQL5 are distinct languages with different syntax, event models, and execution environments, which is why simple format conversion is not possible.
