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Your online toolkit for Sun and Shadow. Simulate sun shadows for any time and place on Earth.

Simulate, visualize and analyze sunlight and shadow in any modern browser using your own terrain, real-estate, and vegetation data and share it on the web.

Browser-based, mobile-friendly, actually private tools that make CSS a little less bad.

Colorful shadows for your images. 🎨
cosha lets you add colorful shadows to your images. Try it out and look for yourself—it really couldn't be easier to set up!