←incomplete.fun/ L-system gardenpresetkoch snowflake edgedragon curvesierpinski arrowheadfractal plantaxiomiterationsanglegrow one generationcopy svg

pauseresetrandomizesave pngcopy urldarkroomspeed

rules, one per lineF=F+F--F+F

F/G/A/B draw · f moves · +/- turns · [ ] branches