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MQL4 Source Codes of Technical Indicators for MetaTrader 4 - 7

The library of technical indicators for MetaTrader 4 developed in MQL4. Regardless of the market (forex, securities or commodity market), indicators help to represent quotes in an accessible form for easy perception.

This section contains thousands of applications that analyze financial markets using different algorithms. Conventionally, they can be divided into a few categories: trend indicators, oscillators, volume indicators and so on. In addition, there are sets of indicators based on algorithms by famous financiers. For example, Bill Williams' indicators and likes of it. All of them are characterized by different parameters of reliability, efficiency, lagging and others. There are more than 2000 indicators for technical analysis: trend indicators, reversal indicators, indicators of levels, predictors, scalping indicators and many others.


The indicator is calculated on the basis of currency pair volatility displaying the nearest support and resistance levels. It can be used as a trend indicator.

The indicator that calculates the volume corresponding to MA per second (or period).

Indicator of support and resistance levels. It simplifies the navigation in placing the "stops".

The indicator that works on the level breakout\rebound.

The indicator plots dynamic support and resistance levels.

Simple tactics using RSI and MACD

The indicator shows convergence/divergence of the fast and slow trailing.

SATL (Slow Adaptive Trend Line) - the «slow» adaptive trend line is obtained using a digital low-pass filter of a different order (light-blue line on the chart).

FATL (Fast Adaptive Trend Line) - the «fast» adaptive trend line is calculated using a digital low-pass filter (cream-colored line on the chart).

Example of optimization using the "running total" method.

The classic TTF with the T3 smoothing method and signal lines.

True Strength Index (TSI) is a double-smoothed Momentum. TSI follows the bars with little or hardly noticeable delay in the main and intermediate trend reversal points.

Triangular Moving Average (TMA). The main weight goes for the average part of the price series. In fact, they are double-smoothed simple moving averages.

DeMark indicator - changed the rendering of the TD lines.

The "Trend Detection Index" indicator is a modified "TDI" indicator.

Sequential is an automated trading system developed by Thomas DeMark.

It uses a detrender based on a Т3 filter, and the "moment" is the price at the closing of the bar.

The indicator draws levels interestingly, especially on the smaller timeframes.

Indicator for a strategy that uses CCI. When trading Woodies CCI all you need is to find Woodies CCI patterns.

The Zig Zag indicator with a sound alert on appearance of a new line on the chart.

Clearly displays the gaps in points as a colored histogram.

My version of plotting the DeMark lines, also draws channels in addition to the trend lines and targets. Added one more target (the third one defined as 1.62 of the inner extremum), added the signal cancellation when closing within the channel.

The indicator of the first price change derivative or simply trend speed and sign.

This indicator shows the trend from the smaller timeframes up to H4.

The indicator plots a moving average with a Bollinger type envelope.

The indicator generates buy and sell signals.

(Slow Adaptive Trend Line) – the «slow» adaptive trend line is calculated using a digital low-pass filter LPF-2. LPF-2 serves to eliminate the noises and market cycles with longer fluctuation periods.

Very convenient to confirm any market entry signals.

The Regression Channel is based on the Linear Regression Trend, which represents a usual trend line plotted between two points on a price chart using the method of least squares.

The Parabolic SAR was also developed by Welles Wilder for use in trending markets. The author of this indicator recommended to identify the trend first, and only after that to use the PSAR for trading with the trend.

Reference Slow Trend Line (RSTL) is a response of the SATL digital filter to the series of input prices with a delay equal to the Nyquist interval of 1/2F.

This is a high-quality ZigZag based on HiLo.

Reference Fast Trend Line (RFTL) is a response of the FATL digital filter to the series of input prices with a delay equal to the Nyquist interval of 1/2F.

The modified version of the RBCI indicator.

Perfect Commodity Channel Index. It has a certain similarity in the calculation method with the Commodity Channel Index (CCI) by D. Lambert.

Trend indicator based on the Kaufman's AMA.

The indicator contains another entry signalizer.

One of the greatly smoothing trend indicators.

As I recall, this indicator had been written by OlegVS for МТ3, for determining the flat. If the price is inside the dotted channel - flat. And MaksiGen redesigned it for МТ4.

This indicator shows when to open and when to close by drawing 2 lines.