Golden Ratio Face

Golden Ratio Face

Golden Ratio Face is a browser-based facial analysis tool that compares three facial proportions against the golden ratio φ (approximately 1.618) and returns an overall harmony score. Hosted at https://pslscale.com/golden-ratio-face as part of the PSL Scale suite, the tool accepts a clear front-facing photograph (JPEG, PNG or WebP up to 10 MB) and reports each measurement as a percentage of closeness to phi, with annotated measurement lines drawn on the original image.

The first measurement is the face height ratio, which compares the upper face (forehead to nose bridge) with the lower face (nose bridge to chin). The second is the eye-to-mouth ratio, comparing the span between the outer eye corners with the width of the mouth. The third is the philtrum-to-nose ratio, comparing total nose length with the philtrum from the nose base to the upper lip. Each ratio receives an individual score; the average of the three becomes the overall harmony score.

Golden Ratio Face uses MediaPipe for landmark detection. The model runs in the browser, so the photo is processed locally and the original image is not stored on the server. The normalized landmark coordinates and image-quality numbers are then sent securely to a selected OpenRouter model that produces a written AI interpretation of the three measurements and their combined score. The result page shows the original photo next to the annotated version with three coloured measurement lines (gold, cyan, pink, purple and green) and a downloadable PNG report.

A free preview shows the user what their report will contain before any credit is charged. Each completed report costs 10 credits on the PSL Scale credit system. The tool is positioned for anyone curious about facial proportions, including beauty enthusiasts, content creators, makeup artists, photographers, and people who want a structured way to discuss facial balance. Golden Ratio Face is clear that a higher score only means the measured ratios sit closer to phi in that photograph — it is not a verdict on attractiveness.