Free tool
Golden Ratio Studio
Analyse the composition of any photo against φ — golden-ratio grid, Fibonacci spiral, a score and tips. Right in your browser, with no upload to a server.
Free tool
What the golden ratio is, and why composition matters
The golden ratio (φ ≈ 1.618) is a proportion that recurs across nature, architecture and painting — from a snail shell to Da Vinci’s drawings. The human eye reads it as naturally balanced, which is why compositions built on φ feel harmonious and "right" without us knowing why.
Composition decides where a viewer looks first, how long they linger and how the image makes them feel. Placing the main subject on a golden-ratio line or point — instead of dead centre — guides the eye smoothly through the frame and gives a photo depth.
This tool overlays the golden-ratio grid, the Fibonacci spiral, the rule of thirds and golden rectangles right on your photo. It computes a simple composition score and suggests how to make the shot stronger.
Composition studio
Try it on your own photo
Drop an image or use the sample. Toggle the overlays on and off, then export the result as a PNG.
Drop a photo here
or upload a file — JPG, PNG, WebP
Before you ask
Golden ratio — frequently asked questions
What is the difference between the golden ratio and the rule of thirds?
The rule of thirds splits the frame into thirds (a 1:1:1 ratio) — it is a simplification. The golden ratio uses the proportion φ ≈ 1:0.618, so the lines sit closer to the centre. Thirds is a quick guide; the golden ratio tends to feel subtler and more natural.
Do I have to calculate composition while shooting?
No. You just train your eye. The more photos you analyse with this grid, the more you start to see golden-ratio points intuitively, right in the viewfinder.
How does the tool calculate the composition score?
It estimates the "focal weight" of the image — the area of highest contrast and brightness, where the eye lands first. Then it measures how close that sits to the nearest golden-ratio point. The closer, the higher the score. It is a guide, not a verdict — rules are made to be broken on purpose.
Do you store uploaded photos?
No. All analysis runs directly in your browser. No image is ever uploaded or saved on a server.
Can I use the result commercially?
Yes. The annotated image is yours. It carries a discreet "Made with Disegno" signature because the tool is free — thanks for the mention.
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