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How to Write an Expert Advisor or an Indicator

MQL5 Source Code Library for MetaTrader 5 - 10


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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FiboPivotCandleBar MetaTrader 5 is a composite of several forex indicators, Fibonacci, Pivot Point, ZigZag, MACD and Moving Average which are combined in this indicator.

Non Lag Relative Strength Index for MT5 Eliminates unnecessary preliminary calculations on the built-in RSI.

Volume Profile + Range v6.0 (former TPO). Distribution of deals by price levels at a given time interval. Displayed as a histogram. The width of the histogram at the level means the number of transactions carried out on it. All Credits of this Amazing indicator to Olexiy Polyakov. I have just fixed the iBarShift and iTime issues, since this is such a great indicator for traders ! Now it is working fine with this files.

RSI with Bollinger Bands calculated on it

Demark Trendlines from Demark Lines for Mt5

Regression Channel with variable polynomial degree - indicator for MetaTrader 5. EA - work in progress.

Stochastic MACD

You can copy the ticks and history from the MetaTrader 4 to MetaTrader 5

Short description.

TrendFlex indicator based on February 2020 TASC article published by John Ehlers

Reflex indicator (based on February 2020 TASC article by John Ehlers)

This will display the Account Trading Report for real trade.

Margin Calculator, Point Value Calculator, Position Size Calculator, Profit Calculator and Swap Calculator.

The MelBar™ EuroSwiss 1.85x 2Y™ Expert Advisor is a specific purpose profit-scalping tool which success depends on your understanding of its underlying strategy and your ability to configure it. Backtest results using historical data from 6 February 2018 15:00 to 19 February 2020 00:00 for the EUR/CHF (M30) currency pair proves very highly profitable. Initial Deposit : US$500 Investment returns : US$1426.20 Net Profit : US$926.20 ROI : 185.24% Annualized ROI : 67.16% Investment Length : 2 years 14 days (2.04 years) Visit these websites :

NZD/USD (M30). Historical Data 18 September 2014 to 18 February 2020. Initial Deposit of US$500 acquires a Profit of US$1625.40 or Profit Return of 225% after 5½ Years. Result : Investment Gain $1,125.40 ROI 225.08% Annualized ROI 24.30% Investment Length 5.42 years MQ5 Software Program Attached. Visit these websites :

This is MQL5 project packer: assemble all source and resource files from dependencies into a single ZIP.

The Rapid Doji EA is a fully functional MetaTrader 5 Expert Advisor that uses pending orders (one BUY and one STOP) around each Doji candlestick on the Daily (PERIOD_D1) time frame. This is a great introduction to how to build a simple, profitable EA. You can watch, step-by-step, how this EA was built via YouTube videos. See the link in the code for details.

Converts trendlines into horizontal lines.

Trading the STRONG against the weak!

Have a look here:

MetaTrader 5 indicator that displays the spread meter on the chart.

Compute the daylight saving time changes (start/end of the summer time).

The good old MT4 indicator! Now for MetaTrader 5.

Trade Transmitter will Transmit Trades from MT5 Demo or Real accounts using CSV Files. Each trade request created manually or by other EAs on MT5 terminal will be automatically transmitted. Positions and orders summaries are also transmitted, so the receiver on the other platform can catch up, in case it misses any of the trade request transmissions. This Code will save your time if you are working on a bridge to copy trades between MT5 and any other platform.

Class to provide simple reading mechanism from MetaTrader set files.

The first really 3D indicator "Moving Average".

A class for easy access to the closed position properties.

Demonstration of Canvas's capabilities using 3D spiral quotes as an example.

This is an indicator w/o buffers which demonstrates parallel multi-threaded calculations in chart objects hosting worker expert adviser.

Just for experiment and to demonstrate the possibilities of Canvas. The price is drawn in the polar coordinate system by winding circles.

Simple code for Candle Cross above or below Conditions..

Welcome to the Binary Testinator. The Purpose of this EA is for testing different Indicators to optimize a trade scenario. Everyone has an opinion on what is the best trade setup, and advice is never ending! Better if you test it out...

Perfect Trend Line 2

By using this indicator you can see the normalized price of any chart! You can use this indicator to find the divergence in the market!

Header with iRSIOnArray function for use with MQL 4 or 5 code.

converted stdlib library for MQL5 from the MQL4

iWPR+ is an iWPR %Range function with a positive value.

The EA uses large volume orders to partially close other orders, with this approach, the breakeven and profit price is much closer to the current price than if you use all orders in the terminal or their full volumes.

This indicator predicts future price movements by searching for similar candle patterns in the rate history.

This is a demo indicator with BPNN neural network library ported from C++ to MQL.