Penrose Tiling Generator
Build a genuine aperiodic Penrose tiling by Robinson-triangle substitution — it never repeats — then export it as PNG or SVG.
130 Robinson triangles (50 acute, 80 obtuse) · 104 rhombi · generation 3
Tiling
Tile type
Both views are the same tiling: each acute triangle pairs with the obtuse triangle across its base to form a thick rhombus (a kite plus a dart in the P2 view).
Each level multiplies the tile count by roughly 2.6, so five levels is the cap — that is already about 2,300 tiles.
Colour
About this tool
A Penrose tiling covers the plane with two tile shapes in a way that never repeats — it is aperiodic, yet five-fold symmetry appears everywhere you look. This tool builds the P3 tiling by Robinson-triangle substitution: an acute 36°–72°–72° triangle splits into one acute plus one obtuse triangle, an obtuse 108°–36°–36° triangle splits into two obtuse plus one acute, and the new corners always land exactly 1/φ of the way along an edge. Because those rules are exact, the pieces always close up: every tile produced is checked against the golden side ratio 1 : 1 : φ as the tiling is generated, and the checks run in your browser along with the drawing and the PNG/SVG exports — nothing is uploaded.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Penrose Tiling Generator really free?
Yes. Penrose Tiling Generator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Penrose Tiling Generator upload my data?
No. Penrose Tiling Generator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Penrose Tiling Generator is ready to use on desktop or mobile.
Does Penrose Tiling Generator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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