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Access the CodeBase from your MetaTrader 5 terminal

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How to Write an Expert Advisor or an Indicator

MQL4 Source Code Library for MetaTrader 4 - 51

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.

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This indicator shows you the trend on every timeframe simultaneously

A modification of the Bollinger Bands, in the same spirit as the Fractal Bands, but using a mathematically more precise equation

action just like pressing home key, esc to exit,

A variation of the Bollinger Bands that incorporates findings from a fractal analysis

The EA well trades on "fat" sites of a trend on periods H4 and D - EURUSD.The input in the market occurs on the basis of two-parametrical Exponential Smoothings Time Series.

This indicator displays lines on the chart corresponding to upcoming news events. Customizable.

Indicator for show some information about current currency

Indicator for draw line observed by the timing of certain (hour & minute of choice)

Indicator for show a percentage Conform to the current currency with another currency

Indicator for Show the length of the candle

for show High & Low & Close

PowerTrend V.2

a practice ea, create a horizontal line above the close to buy , below to sell. after position opened. create a new horizontal line to modify the stop loss and take profit. create a vertical line to close the position.

Fractally adaptive Simple MA, as the first FRAMA but modified to get the fractal dimension from FGDI, and possibility to shift the MA

This indicator for draw an Arrows for buy & sell, it's Depends on ADX Indicator http://forum.m-e-c.biz/post397645-1.html

This indicator for draw an Arrows for buy & sell , it's Depends on SSL channel chart Indicator http://forum.m-e-c.biz/t29121.html

This indicator for draw an Arrows for buy & sell , it's Depends on 2 Moving Averages http://forum.m-e-c.biz/t23791.html

To show the difference between (the High and Low) or between (the opening and closing) by choosing http://forum.m-e-c.biz/t28713.html

A useful well behaved stand alone chart tool for traders, and a practical demonstration and application of principles used in the iMAX3 indicator previously submitted.

to show the proportion of filled candle http://forum.m-e-c.biz/t28908.html

A hybrid indicator where three selectable phase shifted filtered signals can be used, either indivually, or collectively to detect price trends.

This indicator for draw an Arrows for buy & sell, it's Depends on RSI Indicator http://forum.m-e-c.biz/t25109.html

This indicator for draw an Arrows for buy & sell, it's Depends on Cross 3 Moving Averages http://forum.m-e-c.biz/t29278.html

A rework of a script by iliko, with the addition of the standard deviation of the estimator of the box-counting dimension

This indicator for draw an Arrows for buy & sell , it's Depends on T3 Indicator http://forum.m-e-c.biz/t29283.html

This is stochasticzation of Chaikin's Volatility

Scripts deletes all objects from the diagram.

This indicator uses a combination of Bollinger Bands and Keltner Channels to capture moves from low to high volatility.

The indicator of price levels fractals.

Trade at levels МА.

%BB is indicator comes from Bollinger Bands.

This indicator is used to show the trend of the 30 min charts. You can then apply your Long Strategy when the market is UP and Short Strategy when the market is DOWN.

This tool combines the original Bands with Bollinger Bandwidth and removes the extra window for Bollinger Bandwidth. Instead Bandwidth is now a value in the comment in the top left corner. This makes more efficient use of the chart space and still allow

An investigation of the Bollinger band has shown that when the bandwidth (distance between the top and bottom bands) is below 4, the market is compressed and about to break out. When the bandwidth reaches 11, there is a strong wave for scalp trading. Be

Basic indicator that displays the strength of a move, based either on either moving averages, MACD, or stochastics.

It's version 2 of Customized Buy and sell v1 .... http://codebase.mql4.com/4901

Trade machine for manual trading with automatic risk management and "SuperTrainer" mode

For all they need some "play" for visualing the USDx. Use for testing only, not finished and free of errors yet.

This indicator shows the moving average (simple or exponential) of the Standard Deviation.

This indicator gives you Buy or Sell signal.

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