Candlestick pattern lab
See each named candlestick pattern drawn precisely, understand what buyers and sellers did to produce it, and learn what must confirm it before it means anything.
Runs entirely in your browser — nothing you type is sent anywhere. Educational only, and not investment advice.
How to use this calculator
Each step names a control you will find on screen above.
- Pick a pattern
Start with the ones that appear constantly: doji, hammer, engulfing. Rarer patterns are rarer for a reason and are not worth memorising first.
- Read the shape and the story together
Each pattern comes with what the crowd was doing. The shape is a record of a battle, and remembering the battle is far more durable than memorising the outline.
- Read the confirmation requirement
This is the part almost every pattern guide omits. Nearly all patterns require the following session to confirm before they mean anything.
- Compare bullish and bearish mirrors
Most patterns come in pairs. Seeing them side by side halves the amount there is to learn.
Worked example: A bullish engulfing that means nothing
Select bullish engulfing. The second candle’s body completely covers the first, which the textbooks call a reversal signal.
What to enter
- Pattern
- Bullish engulfing
What it shows you
- Shape
- Small red, then a larger green that covers it
- What it records
- Sellers controlled day one, buyers overwhelmed them on day two
- Required context
- After a decline, not mid-range
- Required confirmation
- The next close holds above the pattern high
- Without both
- An ordinary green day
Where this is taught
A calculator gives you a number. These explain what the number means and when it misleads you.
- Technical Analysis10 minSingle-candle patternsHammer, shooting star, doji and marubozu — what each one records about a session, and where each one actually matters.
- Technical Analysis10 minContinuation patterns: when the candles say carry onThree white soldiers, three black crows and the rising and falling three methods — the shapes that describe a trend pausing rather than turning.
- Technical Analysis10 minReading a candlestickFour numbers per candle, and how the shape they make tells you who won the session and by how much.