Pine Script Tutorial: Write Your First Trading Strategy in 10 Minutes

Thirty million traders use Pine Script. It's the language behind every strategy on TradingView — and now, with PineForge, it's the language that powers live automated trading bots.

The learning curve? Surprisingly gentle. If you can describe your trading idea in plain English, you can write it in Pine Script. This tutorial proves it.

What Is Pine Script?

Pine Script is a domain-specific programming language designed exclusively for writing trading strategies and indicators. Unlike Python or C++, every feature exists to serve one purpose: analyzing price data and generating trading signals.

That focus makes it powerful and simple at the same time.

Why Pine Script for Algorithmic Trading?

Your First Strategy: EMA Crossover

Here's a complete, working Pine Script strategy in 7 lines:

//@version=5

strategy("EMA Crossover", overlay=true)

fast = ta.ema(close, 9)

slow = ta.ema(close, 21)

if ta.crossover(fast, slow)

strategy.entry("Long", strategy.long)

if ta.crossunder(fast, slow)

strategy.close("Long")

What this does:

That's it. This is a fully functional strategy you can backtest on PineForge right now.

Key Pine Script Concepts Every Trader Should Know

Series: Data That Flows Through Time

In Pine Script, most values are series — they have a value for every bar on the chart. close is a series of closing prices. volume is a series of volume data. ta.rsi(close, 14) is a series of RSI values.

You don't loop through bars. Pine Script processes each bar automatically.

Built-in Indicator Functions

Pine Script includes hundreds of built-in functions:

See our complete trading indicators guide for detailed explanations of each.

Strategy Functions

These control your entries and exits:

How Do You Add Risk Management to Pine Script?

A strategy without risk management is a strategy waiting to blow up. Here's how to add a dynamic stop-loss:

//@version=5

strategy("EMA Cross + ATR Stop", overlay=true)

fast = ta.ema(close, 9)

slow = ta.ema(close, 21)

atr = ta.atr(14)

if ta.crossover(fast, slow)

strategy.entry("Long", strategy.long)

strategy.exit("SL", "Long", stop=close - 2*atr)

if ta.crossunder(fast, slow)

strategy.close("Long")

The stop-loss is now dynamic — it uses 2x the ATR (Average True Range), so it automatically widens in volatile markets and tightens in calm ones. Learn more in our risk management guide.

What About More Advanced Strategies?

RSI + Trend Filter

Only buy oversold bounces when the trend is up:

//@version=5

strategy("RSI Trend Filter", overlay=true)

rsi = ta.rsi(close, 14)

trend_up = close > ta.ema(close, 50)

if rsi < 30 and trend_up

strategy.entry("Long", strategy.long)

if rsi > 70

strategy.close("Long")

Bollinger Band Mean Reversion

Buy the lower band, sell the upper band:

//@version=5

strategy("Bollinger Reversion", overlay=true)

[mid, upper, lower] = ta.bb(close, 20, 2)

rsi = ta.rsi(close, 14)

if close < lower and rsi < 30

strategy.entry("Long", strategy.long)

if close > upper or rsi > 70

strategy.close("Long")

These strategies have been backtested on PineForge across multiple symbols. The Bollinger Band strategy on EURUSD achieved a +208% return over 3 years with a 2.67 profit factor.

From Pine Script to Live Trading

On PineForge, the workflow is seamless:

Your script runs exactly the same live as it does in backtesting. No translation. No surprises.

Write your first Pine Script strategy on PineForge — it takes less than 10 minutes.

//@version=5
strategy("EMA Crossover", overlay=true)
fast = ta.ema(close, 9)
slow = ta.ema(close, 21)
if ta.crossover(fast, slow)
    strategy.entry("Long", strategy.long)
if ta.crossunder(fast, slow)
    strategy.close("Long")

//@version=5
strategy("EMA Cross + ATR Stop", overlay=true)
fast = ta.ema(close, 9)
slow = ta.ema(close, 21)
atr = ta.atr(14)

if ta.crossover(fast, slow)
    strategy.entry("Long", strategy.long)
    strategy.exit("SL", "Long", stop=close - 2*atr)
if ta.crossunder(fast, slow)
    strategy.close("Long")

//@version=5
strategy("RSI Trend Filter", overlay=true)
rsi = ta.rsi(close, 14)
trend_up = close > ta.ema(close, 50)

if rsi < 30 and trend_up
    strategy.entry("Long", strategy.long)
if rsi > 70
    strategy.close("Long")

//@version=5
strategy("Bollinger Reversion", overlay=true)
[mid, upper, lower] = ta.bb(close, 20, 2)
rsi = ta.rsi(close, 14)

if close < lower and rsi < 30
    strategy.entry("Long", strategy.long)
if close > upper or rsi > 70
    strategy.close("Long")