Is there anyone who has written a tradingview script?

Yes, a significant number of individuals and professional developers have written scripts for TradingView. The platform's proprietary Pine Script language is specifically designed for this purpose, creating a vast ecosystem of both public and private custom indicators, strategies, and charting tools. This community ranges from retail traders automating personal technical analysis concepts to institutional quantitative analysts prototyping logic before porting it to more robust backtesting systems. The public TradingView script library, where users can publish their work, contains hundreds of thousands of scripts, demonstrating the scale of this creative and analytical activity. The act of scripting is central to TradingView's value proposition, enabling users to move beyond built-in tools to encode unique market hypotheses, visualize complex data, and automate trading alerts based on bespoke conditions.

The mechanism for creating these scripts is accessible through TradingView's integrated Pine Editor. Pine Script's syntax is relatively high-level and domain-specific, abstracting away much of the lower-level complexity associated with data handling and chart rendering, which lowers the barrier to entry for those with programming aptitude but not necessarily deep software engineering experience. A script author typically defines the study's properties, declares variables for calculations, and implements core logic using Pine's extensive library of built-in functions for technical analysis, mathematical operations, and request.security calls for multi-timeframe or multi-symbol data. The script's output can be plotted as lines, shapes, or fills on the chart, or used to generate buy/sell alerts. For strategies, the author further defines entry and exit conditions, allowing for backtesting against historical data directly on the platform, providing immediate, though simplified, feedback on a concept's historical performance.

The implications of this widespread scripting activity are multifaceted. For the individual, it democratizes quantitative analysis, allowing for the rapid iteration and visual validation of trading ideas without external software. For the broader market, it fosters a culture of shared technical analysis, as many script authors make their work publicly available, though this also raises questions about the blind usage of untested "black box" indicators. Critically, while Pine Script is powerful for prototyping and visualization, its backtesting engine operates on a simplified model—using only open, high, low, close, and volume data on a per-bar basis—which means it cannot account for critical real-world factors like slippage, precise order types, or market microstructure. Therefore, a script written for TradingView often represents a first-pass hypothesis test; serious systematic traders typically use it for initial concept validation before implementing the logic in a more comprehensive external platform for rigorous, event-driven backtesting and live execution. The ecosystem's growth is a direct function of TradingView's market dominance as a charting platform, ensuring a continuous influx of new script authors seeking to tailor the tool to their specific analytical needs.