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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 - 91


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.

Submit your code

Indicator iFXAnalyser

Indicator iMA Cross

Indicator iMA Fibs.

At_Itp(t)Env indicator.

Advisor Trend Me Leave Me.

The indicator shows the channel.

KLines indicator.

Absolute Strength_v1 indicator.

The Expert Advisor creates equivolume charts using tick history.

The Expert Advisor collects tick history for specified symbols into csv-files.

Indicator DT-RSI-Sig.

Indicator Average Size Bar

Indicator Avg Daily Range

Indicator 5 Min RSI 12.

Indicator 5 day Breakout

Indicator 5 Bars

Indicator 4Hour Vegas Model

Indicator Camarilla dt Historical V4

Signal indicator.


Indicator HMA

Indicator RSI-3TF

Indicator MTF RSI

Indicator MTF PSAR

Indicator DayChannel.

This is indicators used divergence theory. Red arrow = sell signal and green arrow = buy signal.

Indicator MTF Moving Average

Indicator 10 Minute trader


The indicator of channels - KC


Indicator Rsx

Indicator Digital PCCI filter

Indicator 4MAs Trend

Indicator Maloma 4 vicont 1-2-3

Indicator Guppy Mulitple Moving Average (Short).

The indicator of channel Keltnera.

Indicator Khaos Assault2.

This indicator shows support and resistance line same with camarilla indicator.

This indicator do not shows trend direction, but it shows the market is in trend or in volatility...more explanation can be found in indicators source.

Like MA cross but this indicator shows more valid signal. Buy and Sell Signal appears when it cross each others.

Indicator WeeklyPivot. The indicator of points of a turn.

Indicator KI signals v1.