MQ4 to MQ5 Converter

The MQ4 to MQ5 Converter translates MT4 Expert Advisor code into MT5-ready MQ5 code. It analyzes MQ4 source, detects trading logic, data structures, and API calls, and emits equivalent MQ5 source that preserves behavior while aligning with MQ5 semantics. It focuses on EA migration and is suitable for developers, QA engineers, and brokers migrating MT4 portfolios. The output includes a migrated file and a migration summary.

Conceptually, the tool applies a rule-based translator: mapping OrderSend and related trade calls to MQ5's CTrade operations, replacing OnTick/OnInit/OnDeinit handlers with the MT5 event model, and converting data types and array access. It also handles symbol and account information functions, time-based logic, and order management flows, while preserving comments from the MQ4 code where possible. An optional migration report highlights non-translatable constructs.

Who benefits: MT4 developers porting to MT5, QA teams validating migration readiness, broker IT teams deploying MT5 strategies, and educators teaching migration practices. The tool reduces manual refactoring time, lowers risk of logic drift, and accelerates testing by providing a consistent MQ5 baseline.

Core features include automated API mapping, syntax conversion, compatibility warnings, and an optional inliner for simple libraries. Unique value lies in producing a coherent MQ5 migration footprint, including a ready-to-compile MQ5 file and an actionable report. Use cases include batch migrations of multiple EAs, pre-deployment code reviews, and smoke testing in MT5 Strategy Tester.