Is the template file free to modify?

Yes — every conversion template is original PipAtlas code released under the MIT license: use, modify and learn from it freely, including in commercial projects.

Will converted code backtest identically?

No. Tick engines (MetaTrader, Backtrader) and bar-close engines (Pine) fill differently. Expect small differences to compound over hundreds of bars.

How to Convert TradingView Pine Script to MQL5

📅 Updated: October 2026 · ✍️ By The PipAtlas Team

Each guide pairs equivalent code side by side — same logic, both languages — and ships a free, original, MIT-licensed template you can run today. Demo-test everything: translation bugs are cheaper on demo.

Side-by-side: the core translations — Pine Script v5 → MQL5

MQL4 / Python / MQL5 (source)	Pine v5 / target
Getting an indicator value
`// Pine v5: one built-in call atr = ta.atr(14)`	`// MQL5: handle in OnInit, value copied in OnTick int h = iATR(_Symbol, PERIOD_CURRENT, 14); double a[1]; CopyBuffer(h, 0, 1, 1, a);`
Persistent variables
`// Pine v5: var keeps value between bars var float peak = na peak := math.max(nz(peak, close), close)`	`// MQL5: static or global scope static double peak = 0.0; peak = MathMax(peak == 0 ? close : peak, close);`
Entries & exits
`// Pine v5: broker emulator handles fills if strategy.position_size == 0 strategy.entry("L", strategy.long, qty=qty) strategy.exit("L-X", stop=stopPrice)`	`// MQL5: you manage the order lifecycle if(PositionsTotal() == 0) trade.Buy(lots, _Symbol, ask, NormalizeDouble(ask - stopDist, _Digits), 0);`
Higher-timeframe data
`// Pine v5 htfClose = request.security(syminfo.tickerid, "4H", close)`	`// MQL5: direct series access per timeframe double htfClose = iClose(_Symbol, PERIOD_H4, 1);`

Translation notes — Pine Script v5 → MQL5

Pine strategies evaluate on bar close; MQL5 OnTick fires on every tick — add a new-bar gate or your logic runs intrabar with different fills.
strategy.position_size maps to a net position via PositionSelect(_Symbol); on hedging accounts track tickets instead.
Pine repainting (request.security lookahead) has no MQL5 equivalent — MT5 forces you to be explicit about which bar you read.

Download the templates — Pine Script v5 → MQL5

⬇️ mql5-strategy-template.mq5 (MIT) ⬇️ pine-v5-strategy-template.pine (MIT)

Demo-first, always. Templates are teaching scaffolds with risk guards on by default — never run untested code on a live account.

Counterpart guide: MQL5 → Pine v5.

The PipAtlas Team · Updated 10 Oct 2026

Tools and guides are tested on demo accounts before publishing. Editorial policy →