Top MQL4 and MQL5 source codes based on user ratings

Forget about BMP files like a bad dream. Thanks to this library, you can now use the PNG format, which has a number of advantages, such as being more compact without losing image quality and maintaining transparency.

In the fourth part of the book, we will focus on mastering built-in functions (MQL5 API) and will gradually delve into specialized subsystems. Any MQL5 program can utilize a plethora of technologies and functionalities. Therefore, it makes sense to begin with the most simple and useful functions that can be utilized in most programs.

The Heiken Ashi indicator with no repaint or repaint mode input option.

Easy to use.

This script helps traders understand the distribution and breadth of candlesticks over a specific period, which can be useful in making trading decisions such as which Take Profit or Stop Loss to use based on historical values.

Another ZigZag. ZigZag

Unfortunately, I discovered that some brokers are a bit sloppy with the server time change due to the daylight saving time (DST), which I did not expect and which surprised me a lot. Here is a script with which anyone can check their broker.

Script

A set of classes for automatic moving of StopLoss of open positions by fixed indentation or by values of Parabolic SAR and moving averages indicators, or by specified position stop level.

A system to test up to four indicators concurrently in the strategy tester

The Clean Market Watch script is a simple utility tool designed to quickly remove all symbols from your MetaTrader 5 Market Watch window with a single click. This is particularly useful when you want to start fresh with a clean workspace or when your Market Watch has become cluttered with too many symbols. Purpose Over time, traders often accumulate numerous symbols in their Market Watch window, making it difficult to focus on the instruments they actively trade. Manually removing symbols one by one can be tedious and time-consuming. This script automates the entire process, clearing all symbols in seconds.

Calculate DST for USA, EUR, AUD and RUB and the offset time of the broker automatically from the 70's until 2030 - even in the Strategy Tester of MQ.

The final seventh part of the book discusses the advanced capabilities of the MQL5 API, which will be useful when developing programs for MetaTrader 5. These include custom financial symbols, built-in economic calendar events, and general-purpose technologies such as networking, databases, and cryptography.

This indicator displays current events on the chart and allows you to export the calendar to archives for backtesting, automatically fixing time discrepancies between the history of bars and the history of events. This is an improved version of CalendarMonitorCached indicator from the algotrading book.

In Part 5 of the book, we'll delve deeper into the APIs associated with algorithmic trading, including financial data analysis and processing, chart visualization, automation, and user interactions.

The source codes written during the development of the library for creating multi-currency Expert Advisors that combine many instances of various trading strategies.

Highlights the Forex Market Sessions (Sydney, Tokyo, London, New York).

The SuperTrend Indicator is a dynamic trend-following tool based on ATR. It plots a colored line above or below price to indicate bullish or bearish conditions. When the price crosses the line, a signal arrow appears. Fully customizable with ATR period, multiplier, arrows, labels, and colors. Suitable for all instruments and timeframes. Ideal for scalping, swing, and intraday trading. Combine it with other indicators for stronger setups.

The indicator searches the chart for Price Action patterns "Pin Bar" and puts icons on the bar with the found pattern.

This is an OHLC candlestick chart which records the highest ask and lowest bid on each new bar

Part 2 "MQL5 programming fundamentals" is an introduction to the key concepts of this programming language. This part of the book is devoted to data types, identifiers, variables, expressions, and operators. You will learn how to combine different instructions to form the program logic.

AO - Awesome Oscillator - without iAO() beginner tutorial to learn how to code in MQL5

Candle Replay Magnifier visually replays historical candles over the current chart area for comparative analysis. This indicator overlays past price bars from a selected date onto the live chart, allowing traders to study candle patterns, volatility, and structure in real time. Includes dynamic range highlighting and detailed tooltips showing open, high, low, close, range, direction, time, and volume for each replay candle.

Professional Telegram Bot integration library for MetaTrader 5. Complete solution for sending trading signals, screenshots, reports, and real-time notifications to Telegram channels and groups.

Rsi without Irsi() beginner tutorial to learn how to code in MQL5

Class to access to the local time for the specified location, as well as time zone information and the local trading session hours.

Correlation Coefficient" indicator

The AutoCloseOnProfitLoss Expert Advisor (EA) is a powerful automation tool for MetaTrader 5, designed to close all open positions when predefined profit or loss targets are reached

Overlaying multiple stochastics with different periods will help beginner traders.

A multi timeframe version is available with colors for orientation, for developers or profitable traders for free. Offer under conditions. Other multi timeframe indicators are also available.

This indicator helps user estimate the potential price movement for the current day, based on 20 days historical data and market trends.

WeekDays indicator displays Day Of Week, Week Of Year, Day Of Year or Bar Index in the Data Window, and optionally in labels on the chart.

iRSI Very Simple A multi timeframe version is available with colors for orientation, for developers or profitable traders for free. Offer under conditions. Other multi timeframe indicators are also available.

This is a script to export rates and ticks of current chart's symbol into CSV-files compatible with MT5's export/import format.

The "Net Volume" indicator shows the volume taking into account the pressure of sellers and buyers

This script is a reference solution for mapping symbol names configured by users in MetaTrader 5 EAs or scripts to the actual names provided by the broker. It uses the Levenshtein distance algorithm to automatically identify the most similar symbol in Market Watch. Ideal for developers facing compatibility issues with prefixes or suffixes in symbol names. It is a customisable starting point to suit any specific need.

This expert is a system to help any trader to make a grid of orders.

A combination of many known indicators

It is a zigzag which creates new zigzag turning points based on passing a volatility threshold

With these classes you can create and test your signals runtime.