Harmonograph v1.03 - Pelle's Online Harmonograph. Designer Tools from Swantesson Interactive.

Make Creative Line Patterns with
Pelle’s Interactive Harmonograph
Zoom using your mousewheel.
This is a HTML 5 Canvas interactive simulation of a mechanical device with two pendulums swinging independently in any direction. Play and have fun! The device, which began to appear in the mid-19th century and peaked in popularity in the 1890s, is now digitally reinvented here. Made without Flash, using web standards.
© 2010 Per Swantesson

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