Convert Pine Script to MQL5

TradingView to MetaTrader 5. Paste a TradingView indicator and get it back as a MetaTrader 5 indicator (.mq5), with a report on every part of it: what converted exactly, what had to change for MT5, and what couldn't be converted.

AI-converted code to review: compile it in MetaEditor and compare it with the original before you rely on it.

How it works

  1. Paste your Pine Script — The whole indicator: v4, v5 or v6. We keep the MQL5 version and its report, not your Pine Script; it's only sent to our AI provider to convert it.
  2. The AI rewrites it in MQL5 — It follows how Pine runs, bar by bar, and writes built-ins like ta.atr and ta.rsi from Pine's own formulas instead of swapping in MetaTrader's look-alikes, which calculate differently.
  3. Read the report, then compile — Every part of the script is marked as the same as Pine, changed, or not converted, with the reason. Download the .mq5, compile it in MetaEditor and compare it with TradingView on the same chart. If MetaEditor shows errors, paste them and our EA fixer corrects the file.

Why not just use ChatGPT?

Generic AI gives you code and leaves you alone. We fix it if it breaks.

Generic AI chatbot: Gives you code and leaves you alone. If it breaks, you're on your own. No real developer to turn to.

PositionAlpha: AI builds it, and you see a preview first. AI revisions in plain English. A real MQL5 developer fixes it, at no extra cost.

ChatGPT is a trademark of OpenAI. We are not affiliated with OpenAI.

Developer Fix Guarantee

AI builds it. Real MQL5 developers make sure it works.

If your converted indicator doesn't compile or doesn't do what you approved, one of our developers fixes it by hand, at no extra cost. We reply within 24 hours, and if we can't fix it, you get your money back.

Our developers have built 300+ trading bots for prop firms and hedge funds.

We guarantee working code that follows your rules, not trading profits. No bot is guaranteed to make money, and trading can lose money.

See exactly what changed

Sample report: Supertrend + daily EMA.

  • Same as Pine: ta.supertrend(factor, atrPeriod) → Written out with Pine's RMA-based ATR
  • Same as Pine: plot(direction < 0 ? supertrend : na) → Line with gaps where Pine has na
  • Same as Pine: request.security(..., "D", ta.ema(close, 50)[1]) → Daily bars, previous closed day only
  • Same as Pine: ta.pivothigh(high, 5, 5) → Confirmed 5 bars later, as in Pine
  • Same as Pine: Inputs: ATR Length, Factor → MT5 inputs, same defaults
  • Changed: fill(bodyMiddle, upTrend, color.new(color.green, 90)) → Filled area. MT5 fills can't be transparent, so a pale solid green is used.
  • Changed: label.new(bar_index, low, "Buy") → Text object, last 100 kept. MT5 text has no colored box, so the text itself is green.
  • Changed: alertcondition(flip, "Trend up") → MT5 alert, off by default. Switch it on in the inputs. It fires once, when a bar closes.
  • Not converted: strategy.entry("Long", strategy.long). Order logic isn't converted: this tool converts indicators. Build a bot for that instead.
  • Daily data comes from your broker. The daily EMA starts from the first daily bar your broker has, and daily bars follow your broker's server time.

What it converts

  • Inputs, with the same defaults and labels
  • Built-in functions (ta.*, math.*), calculated the way Pine does
  • Plots, histograms, shapes, fills and horizontal lines
  • Higher time frame data from request.security, without looking ahead unless the script does
  • Labels, lines, boxes and tables, as chart objects
  • Alerts from alertcondition and alert, as MetaTrader alerts
  • Arrays, maps, user-defined types and methods

What it changes or leaves out, and tells you

  • Strategy orders (strategy.entry, strategy.exit): the indicator part of a strategy is converted
  • Data MetaTrader doesn't have: request.financial, request.economic and imported libraries
  • Transparency and gradients: MT5 indicator colors are solid
  • TradingView-only time frames, like 3D or 45 minutes
  • Real volume on forex and CFDs: MetaTrader uses tick volume

Why Pine Script to MQL5 conversions go wrong

Pine and MQL5 look alike, but they don't run the same way. A line-by-line translation compiles and still draws different numbers. These are the usual reasons:

ATR isn't the same ATR

Pine's ta.atr smooths the true range with RMA, Wilder's average. MetaTrader's built-in iATR uses a simple average, so swapping one for the other changes every value.

MACD's signal line

Pine's ta.macd uses an EMA for the signal line. MetaTrader's iMACD uses a simple moving average.

Bars are counted from the other end

In Pine, close[1] is the previous bar. MQL5 arrays can run oldest-first or newest-first, and mixing the two is the most common porting bug.

The live bar runs on every tick

Pine rolls a bar's variables back before each tick. Code that keeps a running total in a global variable counts every tick of the live bar.

There's no na in MQL5

Pine's na spreads through calculations and leaves gaps in plots. In MQL5 each one has to be handled by hand, and a division by zero stops the indicator.

Time zones and higher time frames

TradingView uses the exchange's time zone; MetaTrader uses your broker's server time, so daily bars can start at a different hour. Pine's lookahead settings also decide whether history peeks at future bars.

The converter is built around these differences, and its report tells you where the MQL5 version can still differ.

Pricing

Converting an indicator is free to try: you see the report and a preview of the code. You pay once to download the .mq5 file, and the price is shown before you pay. Bot Studio is pay per build: building and previewing a bot, an indicator or a conversion is free, and you pay once to download it. Each of those purchases includes AI revisions and a fix by a professional MQL5 developer. No subscription.

Build MT4 and MT5 trading bots with PositionAlpha

Questions

What if the AI code doesn't work?

If your converted indicator doesn't compile or doesn't do what you approved, one of our developers fixes it by hand, at no extra cost. We reply within 24 hours, and if we can't fix it, you get your money back. We guarantee working code that follows your rules, not trading profits.

Can I convert a Pine Script strategy to MQL5?

The converter makes indicators. From a strategy() script it converts the calculations, plots and alerts, and lists the order logic (strategy.entry, strategy.exit and the rest) as not converted. To trade the idea automatically, describe it to our bot builder instead.

Will the MQL5 file compile?

The AI is told to write code that compiles in MetaEditor on the first try and to follow MQL5's rules, but PositionAlpha doesn't compile or test the code. Compile it yourself in MetaEditor. If it shows errors, paste them on the result page for an AI revision, or request a developer fix.

Will it show the same values as TradingView?

It's written to calculate the same values bar by bar after the warm-up bars. Differences can come from your broker's prices, its server time zone and tick volume, and from what MetaTrader can't draw. The report lists every difference the AI knows about, so compare the two on the same symbol and time frame.

Which Pine Script versions work?

Pine Script v6, v5 and v4, including older study() scripts.

Do you keep my Pine Script?

No. PositionAlpha keeps the MQL5 version and its report in your account, not your Pine Script. The script is sent to our AI provider to convert it.

Can it convert to MQL4 for MetaTrader 4?

Not yet: the converter writes MQL5 for MetaTrader 5.

Can I convert protected or invite-only scripts?

Only scripts whose source you can see and have the right to use. If the script has an author's copyright or license notice, the MQL5 file keeps it.

How much does it cost?

Converting and previewing is free. Downloading the .mq5 file is a one-time payment, shown before you pay, and it includes AI revisions and a fix by a professional MQL5 developer. We guarantee working code that follows your rules, not trading profits.

TradingView and Pine Script are trademarks of TradingView, Inc. PositionAlpha isn't affiliated with TradingView.