Overview

Convert Pine Script to MetaTrader 5

Use HorizonAI to transform Pine Script into MT5 (MQL5) code

Convert your TradingView Pine Script strategies and indicators to MetaTrader 5 (MQL5) using HorizonAI's AI-powered conversion tools.

One-Click Converter

The fastest way to convert. It's available to every signed-in user — the converter is metered by your tokens, just like the chat, so there's no separate plan to unlock.

Use the dedicated converter for a hands-off translation:

  1. Go to app.horizontrading.ai/convert
  2. Paste your Pine Script, or click Upload File (.pine, .mq5, .mq4, .cs, .txt). The converter auto-detects the language — then click Continue.
  3. Under Convert to:, choose MetaTrader 5 (MQL5), then click Convert.
  4. When it finishes, the converted script opens in the chat. From there you can review it, click Download to save the .mq5 file, and keep iterating with the AI.

The converter uses a real AI translation (not a lookup table), so the trade logic actually carries across. Pick Premium for the highest-quality result, or Basic to spend fewer tokens.

Open Converter →

The converter works in every direction across all three languages — Pine Script, MetaTrader 5 (MQL5), and NinjaScript (NinjaTrader 8). Paste any of them and pick any of the others as your target. New to NinjaScript? See Running NinjaScript on NinjaTrader 8.

Convert inside the chat (alternative)

Prefer to talk it through? You can also convert in a normal chat, which lets you ask questions and refine as you go.

Before you start

  • Sign in to HorizonAI (every account starts with a free trial).
  • Have your Pine Script ready to paste.

1) Start a new MQL5 script

  • Click New Script to open the "What do you want to build?" page.
  • Set the language toggle to MQL5 — the target language you want to receive.

You always pick the language you want to end up with. For Pine → MT5, choose MQL5.

2) Paste your Pine Script

  • Expand "Have existing code? Paste it here to edit" and paste your Pine Script into the box.

3) Ask HorizonAI to convert

  • In the prompt box, type: "Convert this Pine Script into MetaTrader 5 (MQL5)."
  • Click Start building →.

4) Review and download

  • HorizonAI produces the MQL5 code in the Code panel.
  • Click Download for the .mq5 file (or Copy Code), then open it in MetaEditor.

Open the result in MetaEditor and compile. If you need changes, adjust your prompt in HorizonAI and regenerate.

Tips for better conversions

  • If your source is a Pine strategy, mention it so trade logic maps to MQL5 orders.
  • Include timeframe, symbol assumptions, or broker specifics if relevant.
  • If you have custom inputs, mention defaults so they become input parameters in MQL5.

FAQs

  • Does it work for indicators and strategies? Yes. Clarify whether your Pine code is an indicator or strategy.
  • Can I keep iterating? Yes. Paste revised Pine code or update your prompt and regenerate.
  • What if it doesn't compile? Check MetaEditor errors, then paste them into HorizonAI and ask it to fix.

Next Steps

Once you've converted your Pine Script to MT5:

Deploy on MetaTrader 5:

Learn More:

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