Introduction to TradingView and Pine Script#
What is TradingView#
TradingView is a cloud-based charting and social trading platform that supports real-time quotes and technical analysis across stocks, futures, forex, cryptocurrencies, and other markets.
Key features of TradingView:
- Cloud-based: No software installation required — works directly in your browser
- Cross-platform: Works on desktop, mobile, and tablet with automatic chart sync
- Community: Publish public scripts and share strategies with traders worldwide
- Broker integration: Supports automated order placement via Webhook, allowing connection to broker APIs worldwide
Comparison with MultiCharts:
| TradingView | MultiCharts | |
|---|---|---|
| Installation | Cloud-based, no install | Local installation |
| Cost | Free tier available | Paid license required |
| Language | Pine Script | PowerLanguage |
| Target users | Beginner to advanced | Intermediate to advanced |
| Auto-trading | Via Webhook | Direct broker API integration |
What is Pine Script#
Pine Script is TradingView’s built-in programming language, designed specifically for developing:
- Indicators: Draw lines, markers, background colors, and other visual elements on charts
- Strategies: Define buy/sell logic and run backtests
- Libraries: Encapsulate reusable functions for other scripts to import
Pine Script is a language designed for financial trading. Its syntax is concise and the learning curve is gentle. The biggest difference from general-purpose languages is its Series concept — every variable records the historical value of each bar, making access to past data very intuitive.
Opening the Pine Script Editor#
- Go to TradingView and open any chart
- Click the Pine Editor icon in the right toolbar
- The editor panel will expand on the right side of the screen
Your First Script#
Enter the following code in the Pine Editor and click Add to chart:
//@version=6
indicator("My First Indicator", overlay=true)
plot(close, title="Close Price", color=color.blue)After running it, a blue line will appear on the chart, tracking each bar’s closing price.
Line-by-line explanation:
| Code | Description |
|---|---|
//@version=6 | Declares the use of Pine Script version 6 (current latest) |
indicator(...) | Declares this is an indicator script; overlay=true means it overlays on the main chart |
plot(close, ...) | Draws a line using each bar’s close price as the value |
Choosing a Script Type#
Every script must declare its type on the first line:
//@version=6
indicator("Indicator Name") // Indicator: for drawing, cannot place orders//@version=6
strategy("Strategy Name") // Strategy: for backtesting and automated trading//@version=6
library("Library Name", overlay=true) // Library: encapsulates functions for other scriptsKey differences between indicators and strategies:
| Indicator | Strategy | |
|---|---|---|
| Drawing | Yes | Yes |
| Order instructions | No | Yes |
| Backtest report | No | Yes |
| Performance | Faster | Slower (needs P&L calculation) |
During early development, it’s recommended to use an indicator to verify logic first, then switch to a strategy for backtesting.