This high-frequency trading robot implements latency arbitrage by comparing price feeds across two separate MetaTrader terminals. It requires a fast data source to serve as a reference and a slower broker where price delivery lags behind the market. The EA communicates between instances via a socket library to detect p
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Free MT4 & MT5 expert advisors
1,977 free, open-source expert advisors for MetaTrader 4 and 5, each linked to its source code on GitHub.
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Trading robotTrade managerRisk & protectionNews tradingCopier & bridge 1Framework & templateCollection 3Utility
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Trend followingBreakoutScalpingGrid 1MartingaleHedging 3Mean reversion 2SMC / ICT / price actionIndicator crossoverArbitrageAI / machine learning 1NewsMulti-strategy
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This MetaTrader 5 expert advisor implements a triangular arbitrage strategy targeting price discrepancies between BTC/USD, ETH/USD, and BTC/ETH. It monitors both forward and reverse conversion paths to execute trades when a theoretical profit threshold is met. The EA features risk management tools including minimum pro
HFT Arbitrage EA is a latency arbitrage system designed for MetaTrader 4 and MetaTrader 5. It operates by comparing price feeds between a fast data source and a slower broker terminal to exploit execution lags. The system utilizes a socket library for real-time communication between server and client components. Risk m
This expert advisor facilitates arbitrage trading between futures and spot instruments, primarily targeting gold and stock indices. Available for MetaTrader 4 and 5, it monitors the price difference between two related symbols against a moving average to identify trade opportunities. The logic includes a noise-filterin
This MetaTrader 5 expert advisor implements a pair trading arbitrage strategy between spot gold and gold futures. The robot monitors the price difference between XAUUSD and the GC futures contract, opening simultaneous buy and sell orders when the spread exceeds a defined threshold. Risk management is handled through a
This MetaTrader 5 expert advisor utilizes a multi-layer perceptron neural network to enhance statistical arbitrage strategies. It periodically scans major currency pairs to identify high correlation relationships across multiple lookback windows. Trade signals are generated based on a confidence threshold derived from
This expert advisor implements a latency arbitrage strategy across MetaTrader 4 and 5 platforms. It functions by comparing price data from a high-speed feed against a slower broker execution environment to identify price lags. When a significant price gap is detected, the system attempts to execute trades to capture th
This MetaTrader 5 expert advisor implements a multi-currency trading strategy based on a coefficient matrix of major forex pairs. It monitors price movements across a predefined set of currencies, including EUR, USD, GBP, AUD, JPY, and CAD, to identify trading opportunities. The system manages trades as a collective ba
This MetaTrader 5 expert advisor implements a triangular arbitrage strategy targeting price discrepancies between correlated currency pairs. The robot monitors specific instruments, including EURUSD, USDJPY, EURJPY, USDCAD, and CADJPY, to identify synthetic price gaps. It executes trades when the calculated gap exceeds
Learn how to use expert advisors
Free, plain-English guides: find an EA, install it, set it up, test it and run it safely.
- 1Types of EAsRobots, trade managers, copiers and risk tools, and what each is for.
- 2Using this librarySearch, filters, badges and what our checks do and do not mean.
- 3Install an EA in MT4 or MT5Data folder, compile, attach to a chart and switch on algo trading.
- 4EA settings explainedLot size, stop-loss, magic number, max spread and trading hours.
- 5Backtest in the Strategy TesterModelling, spread, the report and the over-fitting trap.
- 6Choose a safe EAA checklist for the code, the logic, the evidence and the fit.
- 7Run an EA 24/7VPS, forward testing on demo and going live small.
- 8Open-source EAs on GitHubLicences, compiling in MetaEditor and editing inputs safely.
- 9Forex robots: an honest guideWhat automation can and cannot do for you.
About the EA Library
The ForexR EA Library collects open-source expert advisors for MetaTrader 4 and MetaTrader 5 that are published on GitHub. Each entry links to the original repository, so you always get the author's latest code, issues and licence straight from the source. Star counts, last updates and licences are synced from GitHub every day, and new repositories are added every week.
Every repository is checked automatically before it is listed: it must contain readable MQL source code for a real expert advisor, and repositories that ship executables, hide downloads behind archive passwords or show signs of bought stars are left out. The summaries and tags are written automatically from each repository's README and code. They describe what an EA does; they are not a recommendation, and nothing here is tested or endorsed by ForexR.
Trading with expert advisors is risky. Backtest any EA and run it on a demo account before you trust it with real money. CFDs and leveraged forex are complex instruments with a high risk of losing money rapidly.
EA Library FAQ
What is an expert advisor (EA)?
An expert advisor is a program that runs inside MetaTrader 4 or MetaTrader 5. It can open and close trades on its own, manage trades you opened (trailing stops, break-even, partial closes), protect the account, or connect MetaTrader to other tools such as Telegram or Python. EAs are written in MQL4 (MT4) or MQL5 (MT5).
Are the EAs in this library free?
Yes. Every EA listed here is published on GitHub with its source code, so you can read, download and compile it at no cost. Check each repository's licence before reusing the code in your own projects: some EAs state no licence at all.
Are these EAs safe to use?
ForexR lists only repositories with readable MQL source code and never hosts files. Repositories that ship executables, ask you to disable antivirus, hide downloads behind passwords or show signs of bought stars are left out automatically. That does not make any EA profitable or bug-free: read the code, backtest it in the Strategy Tester and run it on a demo account first.
How do I install an EA in MT4 or MT5?
Download the source from GitHub, open MetaTrader, choose File, then Open Data Folder, and copy the .mq4 (MT4) or .mq5 (MT5) file into MQL4/Experts or MQL5/Experts. Open it in MetaEditor and press Compile, then drag the EA from the Navigator onto a chart and allow algorithmic trading.
How does ForexR choose which EAs to list?
A crawler searches GitHub every week for MetaTrader repositories, reads their code and keeps those that contain a real expert advisor and pass the safety checks. Stars, updates and licences are refreshed from GitHub every day. Summaries are written automatically from each repository's README and code, so treat them as a guide and check the source.
What do "High risk", grid and martingale mean?
A grid EA opens a ladder of orders at fixed distances; a martingale EA increases the lot size after losses. Both can show smooth equity curves for a long time and then lose a large part of the account in one strong trend. EAs that use either are marked High risk, and you can hide them with the "Hide grid and martingale" filter.
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