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How to Write an Expert Advisor or an Indicator

MQL5 Source Code Library for MetaTrader 5 - 24

This is the largest free source code library for MetaTrader 5 platform programs. Here you can find ready-made Expert Advisors, technical indicators, scripts and libraries. Use the code library when learning MQL5 language and develop your own automated trading applications based on the provided codes.

You can freely download and test published codes, as well as launch them in MetaTrader 5. The library is also available directly from MetaTrader 5 platform and MetaEditor development environment.

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The Expert Advisor is based on the signals of the iADX (Average Directional Movement Index) indicator.

The trading system based on crossing of the DI+ and DI- lines of the Fractal_ADX_Cloud indicator.

The Fractal_ADX indicator with the timeframe selection option available in the input parameters.

The TASSKlT indicator with the timeframe selection option available in the input parameters.

The PROphet Expert Advisor consists of two independent linear perceptrons.

The Expert Advisor based on intersection of two iMA.

The Fractal_DeMarker indicator with the timeframe selection option available in the input parameters.

Fractal Average Directional Index.

Simple trend visualizer.

Grid with a constant step. Grid lot sizes based on Fibonacci.

The Expert Advisor opens a reverse position, additionally placing a grid of orders for reinforcement.

The Expert Advisor trades based on two iMA: iMA(5) and iMA(4) on the M5 timeframe.

Fractal Force Index.

The simplest EA based on the fractal WPR.

The Fractal_DeMarker indicator with the timeframe selection option available in the input parameters.

The Expert Advisor processes signals from four iWPR indicators with different averaging periods.

The Expert Advisor manages positions using labels.

The Fractal_WPR indicator with the timeframe selection option available in the input parameters.

Fractal moving average with indication of the last value with a price label with the ability to change the averaging algorithm.

Indicator for automatic selection of the coefficients for every instrument in a pseudo-stationary portfolio, which tends to equilibrium at zero.

Indicator for building custom charts, which are based on user-defined formula.

The Expert Advisor uses the iStochastic (Stochastic) Oscillator, iWPR (Larry Williams' Percent Range) indicators.

The Expert Advisor opens trades based on the Bollinger Bands indicator.

The Expert Advisor which uses the AO and AC indicators in its operation, which were proposed by the Bill Williams.

Uses the iStochastic (Stochastic) indicator from three different timeframes.

Trades using the pending Sell Limit and Buy Limit orders. Removes all orders and closes positions at 23:59.

The indicator displays the balance and equity of the trade account.

The Exp_ColorZerolagMomentum_X2 trend trading system based on the signals from two ColorZerolagMomentum indicators.

Fractal DeMarker oscillator.

The Fractal_Keltner indicator with the timeframe selection option available in the input parameters.

Signals based on four iMA (MA) indicators, by PRICE_OPEN, PRICE_HIGH, PRICE_LOW, PRICE_CLOSE prices. Trades only on hedge accounts.

Works based on the iMACD (MACD) indicators

The Fractal_Bands indicator with the timeframe selection option available in the input parameters.

Fractal Commodity Channel Index.

The Exp_2pbIdealMA EA is based on the crossing of Moving Averages with position scaling according to the trend.

Intersection of two iMA (MA). Uses the iATR indicator.

Real time indicator designed for scalping on FORTS.

The Exp_FisherTransform_X2 trend trading system based on the signals from two FisherTransform indicators.

The FGDI indicator with the timeframe selection option available in the input parameters.

Fractal Larry Williams' Percent Range.

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