Calculations & Plots
Calculations are rebuilt in Pine Script; buffers become plots, and fills and shapes use Pine’s plotting functions. Any visual differences are agreed in advance.
MT4 → TradingView Conversion
Convert MT4 Indicators & EAs to TradingView
We rewrite MQL4 indicators in Pine Script and turn MT4 Expert Advisors into Pine Script strategies — and tell you upfront what an EA can and can’t do on TradingView.
MT4 Indicator to TradingViewMT4 EA to Pine StrategyMQL4 to Pine ScriptRewritten by Hand
3,000+ Projects Delivered
Fixed Scope & Price Before Work
Full Pine Script Source Code
Checked Against Agreed Criteria
MQL4Pine Script
iMA(NULL, 0, 21, 0, MODE_EMA, PRICE_CLOSE, i)ta.ema(close, 21)SetIndexBuffer(0, EmaBuffer)plot(ema)iMA(NULL, PERIOD_H1, 21, …, shift)request.security(…, "60", …)OrderSend(Symbol(), OP_BUY, lots, Ask, …)strategy.entry("L", strategy.long)EA on TradingViewBacktestAlerts
Same logic, rebuilt for TradingView
Overview
What MT4 to TradingView Conversion Means
MT4 to TradingView conversion means rewriting MQL4 code in Pine Script, TradingView’s own language. Indicators carry over well and become TradingView indicators. An Expert Advisor becomes a Pine Script strategy: it runs on TradingView’s chart and in its Strategy Tester and can send alerts, but it doesn’t trade your broker account by itself — so what the EA does is reviewed before work starts.
- From
- MQL4 on MetaTrader 4
- To
- Pine Script on TradingView
- Indicator
- TradingView indicator
- Expert Advisor
- Pine Script strategy — backtests and alerts
- You receive
- Full Pine Script source code
- Method
- Rewritten by hand, no automatic converters
Indicators
Convert an MT4 Indicator to TradingView
Indicators carry over well: calculations, plots, alerts and multi-timeframe logic all have Pine Script equivalents. Converting an MT4 indicator to TradingView means rebuilding them in Pine Script, within TradingView’s limits.
Other Timeframes & Symbols
Values from other timeframes and symbols are requested in Pine Script, from the forming bar or from confirmed bars, as the original does.
Alerts
Alert conditions are built into the script, ready to be added as TradingView alerts in your account.
Objects & Panels
Lines, labels and boxes become Pine drawings and panels become tables. The agreed information and functions are kept within TradingView’s limits; complex interactive panels may need simplifying, and the look is agreed separately.
iCustom & Older MQL4 Code
Calls to other custom indicators through iCustom are rebuilt in Pine Script, so we need their source as well. Older MQL4 code is checked for how its buffers, objects and signals actually behave before it is rebuilt.
Improvements on Request
New settings or functions can be added, several indicators combined into one, or the indicator turned into a strategy.
Expert Advisors
Convert an MT4 Expert Advisor to a TradingView Strategy
An MT4 Expert Advisor trades on your broker account; a Pine Script strategy simulates trades on TradingView’s chart. Converting an EA means turning its trading rules into a strategy for backtesting and alerts — not copying everything the EA does. An MT4 EA manages every trade as a separate order ticket; on TradingView those tickets become entries and exits of a single strategy position.
| MT4 Expert Advisor | Pine Script strategy | |
|---|---|---|
| Trading rules — entries, exits, filters | Yes | YesRebuilt in Pine Script |
| Backtesting | YesMT4 Strategy Tester | YesTradingView’s Strategy Tester |
| Stops, targets, trailing stop | Yes | YesThrough the strategy’s exit orders |
| Real orders on your broker account | Yes | NoSimulated; live trading via alerts to an execution layer |
| Trading several symbols | Yes | PartlyReads other symbols’ data, trades only the chart symbol |
| Long and short at the same time | Yes | NoOne net position: a short closes the long |
| Broker account data — balance, margin, open trades | Yes | PartlyOnly the strategy’s own simulated equity |
| DLLs, files, web requests | Yes | NoNot available in Pine Script |
Which parts of your EA carry over is checked before work starts, and anything without a TradingView equivalent is agreed with you. TradingView backtest results won’t match MT4 exactly: the two platforms use different data and model fills differently.
If the strategy’s alerts should trade an MT4 account, they can be executed by our TradingView to MT4 trade copier. It executes the signals but doesn’t restore EA logic that depends on the real balance, actual fills or other positions on the account; whether an alert fires on the trading condition or on the simulated order fill is agreed in advance.
Platform differences
MQL4 to Pine Script: What Changes and How We Handle It
MetaTrader 4 and TradingView run code in different ways. These are the differences that decide whether a converted script behaves like the original — and what we do about each of them.
Price data
Your MT4 broker’s prices
The data source selected in TradingView
We take the data difference into account and agree with you how closely values must match.
Calculation
Indicators and EAs react to new ticks; the exact behaviour depends on the code
Indicators update as the current bar forms; strategies calculate on bar close by default
We agree whether signals act inside the bar or on its close, and check historical and real-time behaviour separately.
Other timeframes
Data read directly from any timeframe
Requested from another timeframe, from the forming or the confirmed bar
We keep the original’s behaviour — forming or confirmed values. We also check the original for future-data leakage and agree any corrections before conversion.
Orders and positions
Every trade is an order ticket
Simulated orders, one net position per strategy
We map the EA’s trade logic to strategy orders and agree what changes before work starts.
Visual elements
Chart objects and panels created as needed
Drawings, labels and tables, with limits per script
We keep the agreed information and functions within Pine’s limits; complex interactive panels may be simplified, and the look is agreed with you.
Alerts
Pop-up, push and email alerts sent by the code
Alerts created in your TradingView account from the script’s conditions
Alert conditions are built into the script, ready to be added as TradingView alerts.
What may not carry over one to one
Some things depend on the platform itself: DLLs, file and web access; trading several symbols at once; broker account data; and tick-by-tick history. We point these out before work starts and agree the closest TradingView equivalent with you.
Why manual
Manual vs. Automatic Conversion
A converter or an AI pass can produce Pine Script quickly. The risk is not the tool but an unchecked result: code can compile and still behave differently from the original, and an EA’s trade logic often has no direct Pine equivalent. We start from how the MT4 version behaves and rebuild it in Pine Script.
| Automatic conversion | Manual conversion at Nordman Algorithms | |
|---|---|---|
| Starting point | Often the MQL syntax, statement by statement | How the MT4 version behaves |
| Platform differences | Often found later, if at all | Identified before work starts and agreed with you |
| EA trade logic | Order functions translated without a Pine equivalent | Mapped to strategy orders, with limits agreed upfront |
Where unchecked conversions usually go wrong
- Signals shifted by one barMetaTrader code often walks through bars in a different order from Pine’s bar-by-bar run; a missed offset moves every signal a bar earlier or later.
- A backtest that looks too goodA higher-timeframe bar’s final value shows up on earlier historical bars, before that bar actually closed — the backtest looks great and can’t be traded live.
- Signals that change after the factValues calculated on the forming bar look stable on history but repaint in real time.
- Empty values treated as pricesMQL4 indicators often mark gaps with a special empty value; copied as a number, it breaks plots and conditions.
- Trades at the wrong momentWhen a signal is calculated, when the order is sent and when it fills depend on the order type and settings on each platform; transferred wrongly, they shift entries and exits.
- iCustom buffers mixed upMT4 indicators often read other indicators by buffer number; a wrong buffer or shift gives values that look plausible but are wrong.
Have an MT4 indicator or EA you want on TradingView?
Send it to us — we review it and give you a fixed price and timeline before work starts.
Checking the result
How We Check the Converted Script
We run the MT4 original and the TradingView version on the same instrument and timeframe, with matching trading sessions and bar timestamps, and compare them against acceptance criteria agreed with you:
- Calculated values on selected bars
- Signal timing — on which bar a signal appears, inside the bar or after it closes
- Entry and exit conditions for strategies
- Agreed deviations — differences accepted in advance, such as visual layout or broker-specific execution
If something doesn’t match, we find the cause — price data, platform behaviour or the code — and check the result against the agreed specification.
What you receive
- Pine Script source code — the full code of the indicator or strategy
- Ready to add to your chart from TradingView’s Pine Editor; we help with installation if you need it
- Settings agreed with you before work starts
- Fixes for bugs and differences from the agreed specification after delivery
Process
How an MT4 to TradingView Conversion Works
Send the MQL4 code
Share the .mq4 source with its .mqh include files, the source of any custom indicators it calls and your .set file if you have one — plus a short description.
You sendSource + dependenciesReview and fixed quote
We analyse the code, point out anything that works differently on TradingView — especially for EAs — and agree settings, acceptance criteria, price and timeline.
You getFixed price + criteriaRewrite in Pine Script
The indicator or strategy is rebuilt in Pine Script, including any extra features you asked for.
We buildThe TradingView versionCheck against the criteria
The TradingView version is checked against the acceptance criteria agreed in step 2.
We checkValues, signals, tradesDelivery and support
Bugs and differences from the agreed specification are fixed after delivery.
You getPine Script source code
Scope
What Affects the Price and Timeline
Every indicator and EA is reviewed before we quote. These are the main factors.
Size of the Code
How much logic the code contains and how many parts depend on each other.
EA Trade Logic
How much of the EA’s trade handling must carry over, and what changes on TradingView.
Other Timeframes & Symbols
Data the code reads from other timeframes or instruments.
Visual Elements
Objects, panels and dashboards drawn on the chart.
DLLs, Files & Web Access
Features with no Pine Script equivalent, which need a different approach.
Only an .ex4 File?
Conversion needs the .mq4 source. Without it, recreating the indicator or strategy from your description is assessed separately.
★★★★★
"I have given so many project inhouse and outsource programmer, Alexei is the programmer with very less program develop issue, its almost perfect and I feel smooth working the project with him. Will looking back for him for develope my new additional project. Excellent!"
★★★★★
"They set expectations & deliver within or before all deadlines. Communication is excellent. They built an indicator & strategy for me. 9 months later, they still stand behind their work & helped me troubleshoot & correct an error I had found. Good people to work with."
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"Alexei did an outstanding job and was a pleasure to work with. I highly recommend him!"
FAQ
MT4 to TradingView Conversion — Common Questions
Most MT4 indicators can be rebuilt in Pine Script. Features without a Pine Script equivalent — DLL calls, file access, or more drawings than Pine allows — need a different approach; we tell you about them before work starts.
Not as an EA. Its trading rules become a Pine Script strategy for backtesting and alerts on TradingView. The strategy doesn’t trade your broker account by itself; to trade automatically, its alerts are sent to an execution layer such as our TradingView to MT4 trade copier.
Anything TradingView has no equivalent for: real orders on your broker account, trading several symbols at once, long and short positions held together, broker account data, and DLL, file or web access. Which parts of your EA are affected is checked before work starts.
Not always exactly. Your MT4 broker and the data source selected in TradingView provide different prices, and some things work differently on the two platforms. How closely values must match is agreed before work starts, and any difference is traced to its cause.
Not exactly. The two testers use different data and model fills differently, and some EA logic changes on TradingView. What we check is that entries and exits follow the agreed rules.
Conversion needs the .mq4 source code. Without it, we can assess recreating the indicator or strategy from your description, settings and examples of how it behaves — but an exact match with the original can’t be promised in advance.
No. Our developers write the Pine Script version themselves, based on how the MT4 version behaves.
Yes. Pine Script indicators and strategies can be rewritten in MQL4 — see our TradingView to MT4 conversion page.
It depends on the size of the code, the EA’s trade logic, data from other timeframes or symbols and any features without a Pine Script equivalent. After reviewing your .mq4 code we give you a fixed price and an estimated timeline before work starts.
Send Your MQL4 Code for a Quote
Share the .mq4 source code with its include files and the custom indicators it uses, and a short description of what it does. We will review it and give you a fixed price and timeline before work starts.
Free Technical Assessment
Fixed Price Before Work
Source Code Ownership