string array suite
description:this suite of functions is designed to manage two-dimensional string arrays, offering a practical solution for prototyping.notes: this is revision 1, building upon the ...
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MetaTrader MT4 Library Source Code Downloads
Browse free MetaTrader MT4 Library source code downloads including ready-to-use trading tools, algorithmic strategies, and MQL programming resources. This section is designed for traders and developers looking to study, modify, or build custom automated trading systems for MetaTrader 4 and MetaTrader 5.
All Library listings include downloadable source code, allowing you to analyze how each trading system works internally and adapt it to your own trading strategy. These tools are used for education, strategy development, and algorithmic trading research.
Whether you are building Expert Advisors, custom indicators, scripts, or reusable MQL libraries, this collection provides structured access to MetaTrader 4 development resources used by retail traders and algorithmic developers worldwide.
orders suite
a comprehensive library of functions designed for efficient order processing of spot currency pairs, spot gold, and spot silver.this suite includes robust error handling mechanisms...
time suite
a comprehensive library of functions designed for efficient time calculations and report scheduling.this suite offers a range of tools to streamline time-related tasks, ensuring ac...
standard library
this is a source file for the standard library, providing an example of a library implementation.the library offers a collection of functions and classes to facilitate various task...
zeromq asynchronous communication
zeromq is a socket library that acts as a concurrency framework. it carries messages across inproc, ipc, tcp, and multicast and connects n-to-n via fanout, pubsub, pipeline, reques...
native mq http client
description: it does not require any external dlls apart from the standard wininet shipped with win32 in 2026.additionally, it provides some file upload ability.place this in the e...
Automated MT4/MT5 Backtester Control
Automated Backtesting Control UtilityThis utility is designed to automate the backtesting process for MetaTrader Expert Advisors (EAs).The goal is to streamline the procedure of ru...
BB MA C D Functions
In this library, you'll find two functions: ibandsfunc and imacdfunc. These functions enhance the calculation capabilities of their respective indicators, making them suitable for ...
Custom Functions: iacfunc, iaofunc, and ibearsbullsfuncs
This library introduces three custom functions: iacfunc, iaofunc, and ibearsbullsfuncs. These functions enhance the calculation capabilities of their standard counterparts and are ...
Real-Time Excel Export
This script utilizes the DDE library provided by Windows, simplifying the process for novice coders.DDE functions as follows:- Initialize DDE- Create a string handle for the Excel ...
AlgLib: Numerical Analysis Library for MetaTrader
AlgLib: Numerical Analysis LibraryThis library provides functions for numerical analysis, including the calculation of distribution moments such as mean, variance, skewness, and ku...
Simple Unit Test Include Library for MQL4
A straightforward and cost-effective unit test include library designed for MQL4.Usage Instructions:Refer to the attached sample file: testexpert.mq4.The results of unittest#prints...
mt4r for MQL4: A Compatibility Update
mt4r, originally developed by Bernd Kreuss and distributed elsewhere, does not function correctly with new MQL4 versions.This package provides modified DLLs and include files to en...
MQL4 MySQL Connector for Builds 600+
MQL4 MySQL Connector for Builds 600+This library enables MQL4 (MetaTrader 4) to connect to MySQL databases. It addresses the string format changes introduced in MetaTrader 4 build ...
Efficient Hash Map Implementation for String-to-Object Mapping
This is a hash map implementation that allows string indexes, similar to arrays. It maps strings to objects, where the objects must be a subclass of the provided HashValue class.By...
MQL4 HTTP Requests using WinINet.dll (MT4 Build 600+)
This is a simple MQL4 wrapper that uses the native Windows WinINet.dll library. It allows you to send HTTP GET requests to a remote destination and read the response body. This too...
MQL4 JSON Parser Library
MQL4 JSON ParserThis tool parses MQL4 strings containing JSON code, creating a `jsonvalue` object that allows retrieval of fields within the JSON structure. It also includes a `jso...
Script Calling Library for MT4 Build 600 and Later
This is a script calling library for MT4 build 600 and later.This library is for calling scripts from your indicator and expert advisors.On earlier builds of MT4, this can be achie...
G-Speak DLL Update for MT4 Build 600+
G-Speak DLL Update for MT4 Build 600+
This update addresses an issue with the G-Speak DLL, which enables text-to-speech alerts using the Windows TTS engine, for MetaTrader 4 build...
Skype Control Library for MetaTrader
This library allows for sending text messages with necessary information via Skype in automatic trading. It works with Skype through the skype4com library, an ActiveX component tha...
time filter library
the function will filter the trade positon. if the current time in the time you set, the function will return true.usage:extern string timestart="12:00";
extern string ...
convert time to double and vice versa
i've found these small functions very useful when trying to pass datetime through global variables.example:you can use it to save a valueandwhen you want to get the value back....
log4mql
log4mql is an mql4 (metaquotes metatrader 4 language) library for flexible logging to files and the terminal console. it is modeled after the log4j java library.documentation (gith...
my sq l library for mq l4 with proper memory management
the original mql4-mysql.mqh libraryhad a serious problem with memory management. problems were reported by several users (you can read about it here: ).since i wanted to use librar...
corders manager class
it is a simple but good class for orders management. i know there should have been management of magic numbers and so on, this is just a taste.usage:...
fuzzy - library for developing fuzzy models
dmitry kalyuzhny. fuzzynet project website -unzip the archive into the . the library codes are located in the <terminal_data_folder>\mql4\include\math\fuzzynet\ sample test s...
authenticate into an mt4 account from mq l4 (tested in build 880)
since metatrader 4 build 880 was released, it's no longer easy to programmatically fill values in login dialog.this library hides the complicated stuff and provides easy to use api...
the function of program operation by time
the function allows the execution of the specific code in the specified time interval. it is generally used in the expert advisors to set the time interval, in which the ea is allo...
close all locked orders
the function closes all locked orders. this really saves money on the spread....
lot-sl propotion
the function returns the lot size, which is calculated based on the stop loss size and the risk specified in the variable. that is, if the risk is set to 2%, and the sl is set to 4...
fonts lib
the library is intended to implement the font list in the input parameters. the library contains 208 fonts.the font selection is done using the drop-down list.to get the required f...
library of functions for working with in i-files
library of functions for working with ini-files. includes five functions for reading values from an ini-file: - readiniarrayint(); - readinibool(); - readinidouble(); - readiniinte...
function library for maintaining positions with a simple trailing stop
with the help of this library it is possible to implement the ability to maintain positions with a simple trailing stop in any expert advisor. this library is universal and is desi...
comment2
the comment2 library expands the capabilities of the standard comment function for comment output and places the str_text comment to the specified str_no line on the chart.this fun...
time lib by baby bear
several functions for working with the holidays:the functionreturns the last sunday 22:00 before dt.the functionreturns the nearest friday 23:00 time after dt.the functionreturns t...
writing the quotes to a txt file with the full path and file name
function description:an example of a function call:as you can see, everything is very simple. the function will create a text file with the name 'symbol' and write(overwrite) the '...
auto optimizer
the detailed article on the usage of the auto optimizer library and principles of its operation can be found here: the code to insert in your ea:the code to insert in the start() f...
function library and experts for trailing / yury dzyuban
Download the source code for this library
symbol lister
actually, there is nothing more to add to the description. the function is simple, it creates a list of currency pair symbols by iterating over the combinations of the abbreviated ...
lot multiple
this function calculates your lot size depending on definite conditions explained in input variables....
break even&trailing stop
this library has two functions: breakeven & trailingstop.breakeven: this is a function to make stoploss==orderopenprice( ) when the condition is met: the difference between pri...
count buy-sell position
this library has two functions: first to count op_buy positions and second to count op_sell positions....
money management
it calculates the lot size depending on risk percentage entered by user in input parameters....
smart trail
this library has smarttrail trail function that depends on the previous candle.an example:the library first tests if new candle is formed, then in buying positions the trailing sto...
stop loss calculation
this library made to simplify calculating your stop loss for market execution orders.this library enables you to put your stop loss in points, or you can make atr(true) to calculat...
hidden stop loss
this library is made for experts that need to calculate stoploss and takeprofit without putting sl/tp points on the trade.because some brokers are market makers and they, of course...
zz standard functions tf yr1 lib
set of functions for the yr1 timeframe. ==================1.number of bars in the yr1 timeframe. int ibars_yr1 (string exchange); ibarsyr (currency pair). 2.number of bar by time i...
period bars hi g h period bars lo w
Download the source code for this library
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