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Access the CodeBase from your MetaTrader 5 terminal

Couldn't find the right code? Order it in the Freelance section

How to Write an Expert Advisor or an Indicator

MQL4 Source Code Library for MetaTrader 4 - 73

The largest library features codes of free trading Expert Advisors, technical indicators and scripts. With the available applications you can trade in automated mode and analyze price dynamics. Use the library of codes to learn more about financial market sentiments.

Download free applications, test them and run in your MetaTrader 4. You can access them from the MetaTrader 4 platform and the MetaEditor development environment.

To post a new code, please log in or register

Indicator RD.Combo.

Indicator Renko v1.

Indicator Created by Ronald Verwer.

Indicator Dialy Pivot.

Indicator Elders Safe Zone.

Indicator Market Hours Shade v01.

machXalert indicator.

Heiken Ashi Smoothed indicator.

18_28Cross indicator.

Candle_Signal indicator. The alarm indicator.

Indicator ADX Cross Hull Style.

Индикатор Gimmebar.

Indicator Critical Points.

Indicator Cam H1 - H5 Historical V4

Overlay two or more charts on the same window.

Indicator MTF Candles.

Indicator 4 Trendlines v3.

Chande Kroll Stop_v1 indicator.

CMO v1 indicator.

Parabolic_Alert indicator.

Functions for handling two dimensional string arrays. Usefull for prototyping.

Have audio output of latest price.

StepMA_v7 indicator.

System of intraday time trade.

Drawdowns are calculated, too.

SI indicator.

Strategy pabloski, is realized in indicator StepRSI_v5.2.

StepChoppy_v2 indicator. Uses indicators: StepMA_v7, StepRSI_v5.2.

The indicator-informer Currency prints and writes into a file the following information.

A simple multi-frame indicator on the basis of JMASlope for the organization of scalping and swing trading, as well as for an easier detection of Elliot Waves.

This indicator is alternative of moving averages, but with lower lag and adjustable sensitivity coefficient.

A multi-timeframe indicator. It shows the trend direction of several time charts in a separate window.

The library helps to organize calculations of Max, Min, universal mean, standard deviation, skew, kurtosis, and Z-score, on the data array.

The indicator Acceleration&Speed shows speed and acceleration of a price change.

The standard Awesome with some amendments: signal line, setup of quick, slow, signal line, shifting of the signal line.

Shows the full symbol name on a chart.

Bars of almost equal volumes are formed.

The indicator shows a trend.

#MTF Center of Gravity indicator.

DeMark Trendline Trader indicator.