folds

Dragon Curve

Fold a strip of paper in half, again and again, then open every fold to 90 degrees. A dragon appears.

Folds Every fold opened to 4 dragons around one point

Try it with paper: fold a strip in half, again and again, always the same way. Open every fold to a right angle (90°) and stand it on its edge. Each fold doubles the segments. Drag to look around, pinch or scroll to zoom.

Your turn: How many folds before the dragon has more than a million corners?

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⬇ Download (one file, runs offline) All demos as a .zip

One HTML file, no install. Space or R unfold · A all at once · ← → one fold less / more

From the videos

Fold paper in half again and again... 🐉