The Hampel Filter indicator identifies and filters out price outliers to smooth price data directly on the main chart. It calculates the rolling median and Median Absolute Deviation (MAD) of the chosen source series over a specified length. When a data point e
Indicator · Pine Script v5 · On the chart
Bollinger Bands
This indicator plots classic Bollinger Bands on the price chart.
GitHub stars6on the repository
Pine versionv5runs as is
Lines of code20
Settings3inputs
LicenceMIT
Last update7 days ago23 Oct 2026
Add It to Your TradingView Chart
- 1Copy the scriptPress Copy script above, or the copy button on the code below.
- 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
- 3Paste over the templateCreate a new indicator, select all of the template text and paste. Press Save and give it a name.
- 4Add it to the chartPress Add to chart, then adjust the settings with the gear icon next to its name.
Source Code
20 lines of Pine Script v5 from strategies/indicators/bollinger-bands.pine, published under MIT. Keep the author's credit and licence lines when you reuse it.
// Source: TradingView Built-in Indicator (Bollinger Bands)
// Attribution: Standard Bollinger Bands implementation matching TradingView's built-in indicator
// Used as input for AI-powered strategy conversion
//@version=5
indicator("Bollinger Bands", overlay=true)
length = input.int(20, minval=1, title="Length")
src = input(close, title="Source")
mult = input.float(2.0, title="StdDev Multiplier")
basis = ta.sma(src, length)
dev = mult * ta.stdev(src, length)
upper = basis + dev
lower = basis - dev
plot(basis, color=color.blue, title="Basis")
p1 = plot(upper, color=color.green, title="Upper Band")
p2 = plot(lower, color=color.red, title="Lower Band")
fill(p1, p2, color=color.new(color.gray, 90), title="BB Fill")
Overview
Bollinger Bands calculates a simple moving average of the selected source over the chosen length, then places upper and lower bands at a multiple of the standard deviation around that basis. The basis, upper band, and lower band are drawn as separate lines, with a light fill between the outer bands. Length, source, and the standard-deviation multiplier are the main settings. It does not generate buy or sell signals or trade rules.
- Simple moving average basis
- Standard deviation upper and lower bands
- Adjustable length and source
- Adjustable standard deviation multiplier
- Shaded fill between the bands
Details
Published by
trsdn on GitHub
Type
Draws
On the price chart
Category
Markets
Any symbol
Timeframes
Any timeframe
Risk Notes
No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.
Topics
ai-scrumalgorithmic-tradingbacktestingbitcoinbollinger-bandscryptopine-scriptpythonquantitative-financestrategy
Settings
The inputs you can change from the gear icon on the chart. Defaults are the author's.
| Setting | Type | Default | Variable |
|---|---|---|---|
| Length | int | 20 | length |
| Source | source | close | src |
| StdDev Multiplier | float | 2.0 | mult |
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.
Similar Pine Scripts
This overlay indicator plots a Supertrend from an ATR length and factor, four exponential moving averages, and a selectable VWAP or TWAP taken from a chosen timeframe on the price chart. It also shows MACD and stochastic with adjustable lengths, smoothing, ver
This indicator plots trade entry and exit signals on the price chart by combining Bollinger Bands with optional filter conditions. It calculates standard Bollinger Bands along with RSI, Aroon, and moving average filters. Reversal signals trigger when price bre
This indicator plots four customizable moving averages directly on the main price chart using default lengths of 3, 8, 21, and 50 periods. It fills the space between adjacent averages in green or maroon depending on trend alignment. Additionally, it computes B
This indicator plots three exponential moving averages and ATR volatility envelopes on the price chart. It compares the fast and slow EMAs to shade a trend ribbon and marks confirmed upward and downward crossovers with triangle labels. Settings change the thre
This indicator calculates an outlier-filtered moving average based on statistical filtering concepts. It stores close prices in a rolling array over a user-defined length, calculates the mean and standard deviation, and excludes values falling within a specifi
Related on ForexR
Trade Your Charts With a Regulated Broker
Compare brokers that connect to TradingView, with spreads, minimum deposits and leverage side by side.
Compare brokers