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What Is Pine Script, in Plain Words

Pine Script is TradingView's own small language for telling a chart what to draw, written in the Pine Editor and run on TradingView's servers, and every indicator on the site is one. This paper shows you Pine Script in five lines; the idea as a knitting pattern beside the scarf it makes; a four-line script that draws the twenty-bar average, read one line at a time; what those lines draw on the euro's real one-hour bars of 31 August to 3 September 2026, 1.15824 at 16:00 on the 2nd; and the Pine Editor and Add to chart on your platform.

Difficulty
Intermediate
Reading time
5 min
Pages
8
Reviewed by
Saman Rahbar

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Pine Script, in five lines

Pine Script is TradingView's own small language for telling a chart what to draw. A script is written in the Pine Editor at the bottom of the chart and runs on TradingView's servers. It makes an indicator, a line or a shape drawn on the chart, or a strategy, which places paper trades in the Strategy Tester. It is not MetaTrader's language, and it cannot place a real trade by itself. The example is four lines that draw the twenty-bar average of the close, and on the euro's one-hour bars that line stood at 1.15824 at 16:00 on Wednesday 2 September 2026.

A knitting pattern

Picture a knitting pattern beside the scarf it makes. The pattern is five written lines anyone can read: cast on, knit two, purl two, repeat. It is not the scarf; it is the instructions, and any pair of needles that follows it knits the same scarf. A Pine script is a pattern of that kind. Its lines say what to work out from the bars and what to draw, and any chart given the script draws the same thing, on the euro today or on gold last year.

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