What is MetaTrader? MT4 vs MT5 Explained
TL;DR: MetaTrader is the most widely used retail forex trading platform in the world, available in two versions: MT4 and MT5. MT4 remains the go-to for forex-only traders, while MT5 supports more asset classes and offers a more capable strategy tester. Choosing between them comes down to what you trade and which tools your broker supports.
What is MetaTrader?
MetaTrader is a trading platform developed by MetaQuotes Software. Brokers license it and offer it to their clients, which is why the platform looks nearly identical no matter which broker you use. You download it from your broker, log in with your account credentials, and you are ready to place trades, run charts, and use automated tools.
The platform handles everything a retail trader needs: live price feeds, charting, order execution, and support for automated strategies called Expert Advisors (EAs). Because it is broker-agnostic software that runs on a standard interface, third-party developers can build indicators and EAs that work across thousands of different broker accounts.
MetaQuotes released MetaTrader 4 in 2005. It became the standard forex platform almost immediately and has stayed that way. MetaTrader 5 followed in 2010 with a broader feature set, but MT4 kept its dominant position in the forex market because brokers and traders were already deeply embedded in it.
MT4 and MT5: What They Have in Common
Before getting into the differences, it helps to know what they share.
Both platforms offer:
- Real-time charting with multiple timeframes (M1 through MN)
- Built-in technical indicators and drawing tools
- Support for automated trading via Expert Advisors
- A built-in strategy tester for backtesting EAs
- Custom indicator support through their respective scripting languages
- Mobile apps for iOS and Android
- One-click trading and pending order types (limit, stop, stop-limit)
If you have used one platform, you will find the other familiar. The layout, the chart controls, and the order ticket all follow the same general pattern.
Key Differences Between MT4 and MT5
This is where it matters for your decision.
Asset Classes
MT4 was designed for forex. It handles currency pairs well, and most brokers that offer it primarily list forex instruments, with some CFDs on indices, commodities, and metals added on.
MT5 was built from the ground up to support multiple asset classes: forex, stocks, futures, options, and commodities. If your broker offers equities or futures through MT5, you can trade them all from the same platform. For a trader who wants to hold EUR/USD alongside individual stock CFDs, MT5 is the more practical environment.
Programming Languages: MQL4 vs MQL5
MT4 uses MQL4. MT5 uses MQL5. They look similar but are not compatible. An EA or indicator written in MQL4 will not run on MT5 without being rewritten or converted, and vice versa.
MQL5 is the more powerful language. It is closer to C++ in structure, supports object-oriented programming, and runs backtests faster due to a multi-threaded execution engine. For developers building complex automated strategies, MQL5 offers more capability.
The practical catch: the MT4 ecosystem has been built up over nearly two decades. There are far more free and commercial MQL4 indicators and EAs available than MQL5 equivalents. If you are buying or downloading third-party tools, check which platform version the product targets before purchasing.
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Strategy Tester
Both platforms include a built-in strategy tester for backtesting automated strategies against historical data.
MT4's tester is single-threaded. It runs one pass at a time, which means optimization tests that check hundreds of parameter combinations can take a long time.
MT5's tester is multi-threaded and can also run optimization tests across multiple cores or even across a network of machines (the MetaQuotes Cloud Network or your own agent network). For serious EA developers running thousands of optimization passes, this difference is significant. Backtests also run faster on MT5 in general.
MT5 also supports multi-currency and multi-symbol backtesting, meaning you can test a strategy that trades several pairs simultaneously in a single test run. MT4 cannot do this natively.
Hedging vs Netting
This is a practical difference that affects how your positions are tracked.
MT4 uses a hedging account model. If you buy 1 lot of EUR/USD and then place a separate sell order on the same pair, you end up with two open positions. Each position is independent.
MT5 originally used a netting model, where multiple trades on the same instrument are combined into a single net position. Over time, MetaQuotes added hedging account support to MT5 as well, so brokers can now offer either mode. However, not every broker enables hedging on MT5, so you should confirm with your broker before switching if hedging is part of your trading approach.
Timeframes and Depth of Market
MT4 has 9 chart timeframes. MT5 has 21, including timeframes like M2, M3, M4, M6, M10, M12, H2, H3, and H6 that simply do not exist in MT4. For traders who use custom timeframes in their analysis, MT5 gives more native options.
MT5 also includes a Depth of Market (DOM) window that shows the order book for instruments where the broker provides that data. MT4 does not have this feature.
What is MetaTrader 4 Best Used For?
MT4 is the right choice if:
- You trade forex pairs exclusively or primarily
- You want access to the largest library of existing indicators and EAs
- Your broker offers strong MT4 support but limited MT5 infrastructure
- You use a strategy that relies on hedging and want to avoid any broker-level configuration uncertainty
- You are comfortable in MQL4 or working with MQL4-based tools
MT4 is a mature, stable platform. MetaQuotes announced back in 2022 that it would stop distributing new MT4 licenses to brokers, which has pushed many brokers toward MT5. MT4 is not disappearing overnight, but the long-term trajectory points toward MT5.
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What is MetaTrader 5 Best Used For?
MT5 makes more sense if:
- You trade beyond forex: stocks, futures, commodities, or options
- You develop or use EAs that benefit from faster backtesting or multi-symbol testing
- Your broker has made MT5 its primary platform
- You want access to the broader range of timeframes
- You are building new automated strategies and want the more capable MQL5 language
MT5 is the platform MetaQuotes is actively developing. New features go to MT5 first. If you are starting fresh and your broker supports both, MT5 is likely the better long-term foundation.
Which Should a Retail Forex Trader Pick?
There is no single answer, but here is a practical framework.
If you opened an account with a broker that offers both platforms, ask yourself two questions. First, do you plan to trade anything other than forex and standard CFDs? If yes, go with MT5. Second, do you rely on a specific indicator or EA that you already own in MQL4? If yes, stay on MT4 unless a compatible MQL5 version exists.
For brand-new traders who have not committed to any tools yet, MT5 is the reasonable default. The platform is more capable, the strategy tester is better, and it is where broker development is concentrated.
For traders who have an existing library of MQL4 tools, switching has a real cost. Your tools either need to be repurchased in MQL5 versions or converted, and conversion is not always straightforward.
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People Also Ask: Is MetaTrader Free to Use?
Yes. MetaTrader is free to download and use. Brokers provide it at no direct cost as part of their trading infrastructure. You may pay trading costs through spreads or commissions depending on your broker's account type, but the platform software itself carries no license fee for traders.
Third-party indicators, EAs, and tools built for MetaTrader may be free or paid depending on the developer.
FAQ
Q: Can I use the same MetaTrader account with multiple brokers? A: No. Each broker runs its own MetaTrader server. Your login credentials are specific to that broker. You can install MetaTrader multiple times on the same computer with different broker configurations, but accounts are not portable between brokers.
Q: Is MT4 being shut down? A: MetaQuotes stopped issuing new MT4 licenses to brokers in 2022, but existing MT4 brokers continue to operate the platform. Many brokers still run MT4 alongside MT5. It is not being shut down, but new broker support for it has effectively ended, and some brokers have migrated their clients to MT5.
Q: Can MT4 indicators work on MT5? A: Not directly. MT4 indicators are written in MQL4 and MT5 indicators in MQL5. They are different languages and not cross-compatible. Some indicators have been released in both versions separately. Always check which version a product targets before purchasing.
Q: What is the difference between MetaTrader and a broker's web platform? A: MetaTrader is a standalone downloadable application that many brokers offer alongside their own web-based platforms. MetaTrader supports automated trading via EAs, custom indicators, and backtesting, which most broker-built web platforms do not. If automation or custom charting tools are important to you, MetaTrader is typically the stronger environment.
Q: Does MetaTrader work on Mac? A: MetaTrader does not have a native Mac application. Mac users typically run it through Wine (a compatibility layer), through a Windows virtual machine, or by using the web-based MetaTrader WebTerminal that brokers provide. Mobile apps are available natively for both iOS and Android.
The Bottom Line
MetaTrader is the backbone of retail forex trading, and understanding which version fits your situation is a practical first step before you build out a trading setup. MT4 has a deep ecosystem and works well for forex-focused traders who use existing MQL4 tools. MT5 is the more capable platform with better testing infrastructure, broader asset coverage, and more active development. If you are starting fresh or trading beyond forex, MT5 is the stronger foundation. If you are embedded in the MT4 ecosystem, there is no urgent reason to move unless your broker or your strategy demands it.