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Candlestick Pattern Scanner — Automatic Pattern Detection Guide

How to find candlestick patterns automatically — scanner tools, Chartink screeners, filters — a complete guide.

Published by The Retail Trader · AUG 03, 2026 · Features

Schema: FAQPage, Article

What Is a Pattern Scanner?

A candlestick pattern scanner is an automated tool that scans all stocks at once and identifies candlestick patterns (Doji, Hammer, Engulfing, etc.) — without you having to look at every stock's chart manually.

Manual method: Opening the charts of 500+ stocks individually and hunting for patterns — can take hours.

Scanner method: Run one query and the scanner shows you all matching stocks in seconds.

This is especially useful when you are looking for a specific setup across the whole market — for example "which stocks formed a bullish engulfing today."

How Does a Scanner Work?

Keep these four points in mind:
• The scanner checks each stock's OHLC (Open, High, Low, Close) data
• It applies predefined mathematical rules (e.g., for a Doji: open and close must be very close, the body must be small)
• It shows the stocks that match the criteria in a result list
• It is available in both real-time and end-of-day modes

Common patterns that scanners detect:
• Doji, Hammer, Inverted Hammer
• Bullish/Bearish Engulfing
• Morning Star, Evening Star
• Shooting Star, Hanging Man
• Three White Soldiers, Three Black Crows

Best Scanners — Comparison

Keep these four points in mind:
• Chartink — Price: Free (basic) + ₹999/mo (premium), Best For: Indian stocks screening, Key Feature: Custom formula-based scans, alerts
• TradingView — Price: Free + ₹1,499/mo, Best For: Charts + screening combined, Key Feature: Visual pattern recognition + global markets
• TRT SUPERCHART — Price: Free, Best For: Beginners, all-in-one, Key Feature: Live charting + pattern detection integrated with watchlist
• Trendlyne — Price: Free + paid tiers, Best For: Deep analytics + patterns, Key Feature: Combines patterns with fundamentals

Recommendation: Beginners should start with TRT SUPERCHART (free, integrated); for advanced screening, Chartink formula scans are powerful.

How to Use a Scanner — Step-by-Step (Chartink Example)

Keep these ten points in mind:
• Go to chartink.com → open the "Screener" section
• Select a candlestick pattern filter from the dropdown (e.g., "Bullish Engulfing")
• Add additional filters:
• Market cap > ₹5,000 Cr (liquid, established stocks)
• Volume > 1 lakh shares (avoid illiquid stocks)
• Price > ₹50 (avoid penny stocks if you like)
• Click Run scanner → a list of matching stocks will appear
• Verify manually — open each stock's chart and visually confirm the pattern
• Confirm Support/Resistance + RSI — the pattern alone is not enough
• Add confirmed setups to your watchlist and make a trade plan

Why You Should Not Trust Scanner Results Blindly — Avoid Blind Trading

Mistake 1: Scanner Signal = Automatic Buy

A scanner only gives candidates, not trading signals. A pattern having formed does not mean you must take the trade.

Mistake 2: Skipping Volume Confirmation

A candlestick pattern without volume is weak. Always check whether the volume on the pattern's day was above average or not.

Mistake 3: Ignoring Trend Context

A bullish pattern means something different in a downtrend compared to an uptrend. It is essential to look at the overall trend along with the pattern.

Mistake 4: Trading Without Support/Resistance

The most reliable patterns are the ones that form at key support/resistance levels. A pattern formed at a random spot is less reliable.

Scanner + Confirmation Checklist

After a pattern is detected, confirm these 4 things before taking a trade:

Keep these four points in mind:
• Volume — was the volume on the pattern's day above average?
• Trend Context — is it aligned with the overall trend or against it?
• Support/Resistance — did the pattern form near a key level?
• RSI/Other Indicators — are you getting momentum confirmation?

Only if 3-4 factors match should you consider it a high-probability setup.

How to Use Pattern Detection on TRT SUPERCHART

Keep these five points in mind:
• Go to the charting page → /charting
• Add your target stocks to the watchlist
• The auto pattern detection feature (Pro/Max plans) automatically highlights bullish/bearish patterns on the chart
• You can see volume and RSI along with the pattern on a single screen — confirmation becomes fast
• You can set alerts for specific patterns

Cheat Sheet

Keep these points in mind:
• 📌 CANDLESTICK PATTERN SCANNER
• 📊 An alternative to manual chart-checking — scan all stocks at once
• 📊 Chartink — Best for Indian stocks, custom formula scans
• 📊 TradingView — Global + visual pattern recognition
• 📊 TRT SUPERCHART — Free, integrated with charting + watchlist
• STEPS:
• 1. Find candidates with the scanner
• 2. Verify manually on the chart
• 3. Confirm volume (above average?)
• 4. Check trend context
• 5. Check whether it is near an S/R level
• 6. Confirm RSI
• 7. Only then trade
• ⚠️ Scanner signal ≠ Buy/Sell signal — it is only a candidate list

FAQ — Common Questions About Pattern Scanners

Are candlestick scanners accurate?

Pattern detection is mathematically accurate (rules-based), but the "reliability" of a pattern depends on context — it is essential to combine it with volume, trend and support/resistance.

Should I use a free scanner or a paid one?

For beginners, free tools (Chartink free tier, TRT SUPERCHART) are enough. If you need advanced custom filters and real-time alerts, consider a paid tier.

Can scanners be used for intraday trading?

Yes, real-time scanners are available for intraday too — but patterns on lower timeframes are noisier, so extra confirmation is necessary.

How many patterns can be scanned in a day?

Most scanners allow unlimited scans — tools like Chartink scan the entire NSE/BSE universe (2,000+ stocks) in seconds.

Which pattern is the most reliable for scanning?

Bullish/Bearish Engulfing and Morning/Evening Star patterns are generally considered more reliable than single-candle patterns (like Doji), especially when volume and trend confirm.

What to Read Next?

Keep these four points in mind:
• Candlestick Patterns Guide — 10 Patterns Every Trader Should Know
• Candlestick Cheat Sheet — Quick Reference
• What Is the RSI Indicator? Complete Guide
• How to Identify Support and Resistance?

This article is educational analysis — not investment advice. Do your own research, manage your own risk.

The Retail Trader — educational market analysis. Not investment advice.

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This article is for educational purposes only — it is not a buy or sell recommendation, it makes no claim of guaranteed returns, and it is not advisory. Rules, rates and mechanics of the exchanges, SEBI and RBI change from time to time, so verify every number yourself with your broker or an official source.

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