Top MQL4 and MQL5 source codes based on user ratings - 208

A lightweight memory meter dashboard that reveals current MT5 memory usage and key resource statistics directly on the chart.

Closed-bar ICT/SMC session-liquidity scanner for three symbols, with confirmed MSS, FVG retests, risk/reward projections and optional macro context.

Measures, hour by hour, how far a symbol travels and how much of that the spread takes away. Built for gold, works on any symbol, compares several side by side.

TimeCurrent() is not a clock. It is the stamp of the LAST TICK. Two consequences break robots in production: 1. It freezes. With no tick it does not move: illiquid instrument, end of session, unstable connection - and any rule based on it stops with it. 2. It steps backwards: on a symbol switch, a reconnection or a tick from another instrument, the value can go back. The case that cost me a whole protection: I compared the date of a daily decision with TimeCurrent() to reject an expired one. The server clock stepped back to the previous day, the comparison matched, and four EAs accepted YESTERDAY's decision as valid. The gate that should have failed closed failed open - without a single error in the log. Rule: TimeLocal() for timestamps, dates, day changes, expiry - all that must always move forward; TimeCurrent() for session hours and market data. The script measures the divergence in your environment and reports both symptoms live. Run it with the market closed.

Four EAs writing to the same file, all with FILE_SHARE_READ|FILE_SHARE_WRITE, FileSeek(SEEK_END), FileWrite, FileClose. Looks correct. Every FileOpen returns success. No error in the log. And the lines vanish. Reason: FILE_SHARE_WRITE lets all four open at the same time. All four call FileSeek(SEEK_END) and get THE SAME offset, because none has written yet. All four write at the same position. Whoever closes last wins. Three lines vanish silently. In my case: 12 events expected, 8 in the file. The fix is to open EXCLUSIVELY (no FILE_SHARE_WRITE) and retry while another EA holds the file. And to shout in the log when the retries run out: a log that fails silently is worse than no log at all, because you trust it. The demo script reproduces both modes. To see the loss, drag it onto four charts at the same time with safe mode off and count the lines in the CSV. On a single chart the defect does not show up - which is why it passes in testing and breaks in production.

Three position-sizing protections that do different things; confusing them is why so many accounts get wiped out: - ladder: one contract per X of balance, always applied as a CAP, even with manual lot sizing; - floor: below the minimum capital it does not trade; a new deposit is needed; - breaker: stops at X% below the peak, at any account size, and does not rearm by itself. What this library solves and almost none does: a deposit is not profit, and a withdrawal is not a loss. The breaker measures the drop against the balance peak. Untreated, a deposit made DURING a drawdown lifts balance and peak together, and the protection stops seeing the drop exactly when it would help. Here deposits and withdrawals shift the peak by the same amount. The peak is persisted to a file: a breaker that forgets the peak on a terminal restart is not a breaker. The demo simulates a deposit at the bottom of a drawdown. Run it with the deposit on and off and compare the "drop" column.

Drag your stop loss where you actually want it, hit Buy or Sell, and the lot size is already correct — no calculator, no spreadsheet. Handles break-even, trailing, and shuts trading down for the day if you hit your loss limit.

AurumNeuro Vanguard is an intelligent Expert Advisor (EA) specifically designed for XAUUSD / Gold trading, combining a hybrid Neural Risk Architecture with the Unified Market Dynamics Engine (UMDE).

A compact educational indicator for MetaTrader 5 that renders classic fixed-size Renko bricks on a single CCanvas bitmap layer and overlays Bollinger Bands calculated directly from completed Renko closes. The horizontal axis represents Renko sequence rather than time. The internal Renko builder uses incoming BID ticks and the classic two-brick reversal rule. Bollinger Bands are calculated only from completed Renko bricks; the forming brick is never used in the band calculation.

MQL5 port of a Pine Script ATR trailing-stop indicator: nLoss = ATR-multiple, the stop ratchets under price in an uptrend and over price in a downtrend, and flips (with a buy/sell arrow) when price closes through it. Includes a Python reference port and a parity test that checks both agree with a literal, bar-by-bar transcription of the Pine semantics (na/nz/series history).

Writes a CSV journal of every trade with the exit reason, and a report that shows how far each trade ran, in R. It never trades.

Draws Asian, London and New York session range boxes and marks liquidity sweeps: a closed bar that wicks beyond a completed session's high or low and closes back inside. Non-repainting arrows, extended session levels, alerts and iCustom-ready buffers.

Shades the chart background by volatility regime (Compression, Normal, Expansion) based on the percentile rank of the current ATR. Shows the current regime on the chart, alerts on regime changes and exposes buffers for Expert Advisors.

Shades the chart background by volatility regime (Compression, Normal, Expansion) based on the percentile rank of the current ATR. Shows the current regime on the chart, alerts on regime changes and exposes buffers for Expert Advisors.

Opens charts for all Market Watch symbols or a custom symbol list in one click, on any timeframe, with an optional template applied to each chart. Skips charts that are already open and limits how many are opened at once.

Exports closed trades to CSV with Maximum Adverse Excursion (MAE) and Maximum Favorable Excursion (MFE) in points and money, calculated from M1 history, plus the percentage of the available move each trade captured.

A specified moment in time can be analyzed through multiple synced timeframes from 1 host chart for a symbol.