How does the AI face shape detector work?

Our tool uses face-api.js powered by TensorFlow.js to detect 68 facial landmark points directly in your browser. It then calculates key measurements — face width, length, forehead, cheekbones, and jawline — and classifies your face shape using proven geometric ratios. All processing happens locally on your device.

Is my photo stored or uploaded anywhere?

No. Your photo never leaves your device. All AI analysis runs entirely in your browser using WebAssembly and TensorFlow.js. We don't have a server that receives your image. This is a core feature of our privacy-first design.

What are the 6 face shape types?

The six main face shapes are: Oval (balanced, slightly longer than wide), Round (nearly equal length and width with soft curves), Heart (wider forehead, narrower jaw), Square (strong angular jaw, similar forehead/jaw width), Diamond (prominent cheekbones, narrow forehead and jaw), and Oblong (significantly longer than wide with similar top/bottom width).

How accurate is the face shape detection?

Our AI is highly accurate for clear, front-facing photos with good lighting. The detection uses 68 anatomical landmark points and geometric ratio analysis. For best results, use a photo where your full face is visible, you're looking straight at the camera, and there are no accessories covering key facial features.

What photo should I use for best results?

For the most accurate results: use a front-facing photo with your face fully visible, ensure good, even lighting (avoid harsh shadows), pull your hair back if possible, look straight at the camera, and make sure your face takes up at least 30% of the frame. Avoid glasses or face coverings.

Can I use this tool on mobile?

Yes! FaceShape AI is fully mobile-responsive and works on all modern smartphones and tablets. You can upload a photo directly from your camera roll or take a new photo using your device camera.

What do the hairstyle recommendations mean?

Each face shape has hairstyles that are most flattering for it based on established beauty principles. These recommendations aim to create visual balance — for example, adding height for round faces or width for oblong faces. They're starting points, not strict rules — personal style always wins!

What is the facial symmetry score?

Your symmetry score measures how evenly balanced your facial features are from left to right, how your proportions compare to the golden ratio (1.618:1), and how defined your jawline is. Higher scores indicate greater facial harmony. No face is perfectly symmetrical — variation is natural and beautiful.

Do I need to create an account?

No account required. FaceShape AI is completely free and requires zero sign-up. Just visit the site, upload your photo, and get your results instantly.

Why does it take a few seconds on the first use?

On your first visit, the AI model files (~6MB) need to be downloaded from our server to your browser. This is a one-time download — after that, your browser caches the models and all subsequent analyses are instant. We use lazy loading so models only download when you interact with the tool.

Can I use my camera to detect my face shape?

Yes! Our face shape detector includes a built-in camera feature. Just click 'Take Selfie', allow camera access, and capture your photo directly in the browser. Your camera turns off immediately after the photo is taken and nothing is stored.

Oval vs Round Face Shape: What's the Difference?

Oval and round are the two most commonly confused face shapes — and for good reason. Both are characterized by soft curves with no sharp angles. Both have similar widths. And selfies don't always make the difference obvious.

But the styling implications are quite different. The cuts, glasses, and makeup techniques that work on a round face don't always translate to an oval face — and vice versa.

This guide explains the key differences in detail. Or skip straight to the definitive answer: use our free AI face shape detector to get a precise measurement.

The Key Differences at a Glance

| Feature | Oval | Round | |---|---|---| | Face length vs width | Length ≈ 1.5× width | Length ≈ equal to width | | Jawline | Gently tapered | Softly rounded, fuller | | Cheekbones | Widest point, gentle curve | Similar width to jaw | | Forehead | Slightly wider than jaw | Similar width to jaw and cheeks | | Overall shape | Elongated egg | Circle or soft square with curves | | Styling needs | Very versatile | Add length, reduce width |

Understanding the Oval Face

An oval face follows the proportions described by the classical golden ratio — the ideal where the face length is approximately 1.5 times the width. The cheekbones are gently the widest point, with the forehead slightly wider than the jaw and everything tapering gently.

The key characteristic is length relative to width. An oval face is visually taller than it is wide.

Celebrities with oval faces: Beyoncé, Rihanna, Jessica Alba, Ryan Reynolds

Styling for oval: Almost any style works. The goal is simply not to obscure the natural balance. See: Oval Face Hairstyles for Women and Oval Face Hairstyles for Men.

Understanding the Round Face

A round face has a width that's nearly equal to its length. The forehead, cheekbones, and jaw widths are roughly similar, and the face has a circular or soft square appearance when viewed from the front.

The fullness of the cheeks is often more apparent on round faces. The jaw line is soft and rounded rather than tapered.

Celebrities with round faces: Selena Gomez, Ginnifer Goodwin, Channing Tatum

Styling for round: The goal is to create the illusion of length. See: Best Hairstyles for Round Face Women and Best Hairstyles for Round Face Men.

How to Tell If Your Face Is Oval or Round

Method 1: The Length Test

Measure your face from the center of your hairline to the tip of your chin (length). Then measure at the widest point — usually the cheekbones (width).

If length is about 1.5× width: Oval
If length and width are roughly equal: Round

Method 2: The Jawline Test

Look at your jaw in a mirror or front-facing photo:

Gently tapered, with a slightly pointed chin: Oval
Rounded, full, and curved without a clear taper: Round

Method 3: The Forehead-to-Jaw Comparison

Forehead noticeably wider than jaw: Leaning oval (or possibly heart)
Forehead and jaw similar width: Leaning round

Method 4: Use AI

The fastest and most precise method: our AI face shape detector analyzes 68 facial landmarks and calculates precise ratios — distinguishing oval from round with a confidence percentage.

Why the Difference Matters for Styling

Hair

Oval: Almost any haircut works. You can wear a center part, full bangs, any length, or any silhouette.
Round: You need styles that add length (long layers, high ponytails) and avoid styles that add width (chin-length bobs, voluminous curls at the sides).

Glasses

Oval: Any frame shape works.
Round: Angular frames (rectangular, square, wayfarer) add definition that round faces need.

See: Best Glasses for Every Face Shape

Makeup

Oval: Minimal contouring needed. Highlights wherever you like.
Round: Contour the sides of the face and under the cheekbones to add definition and apparent length.

The "Oval-Round" Blend

Many people fall between these two shapes. If your measurements give you a length-to-width ratio around 1.2–1.3 (somewhere between the two), you likely have a blend — sometimes called "oval-round" or "soft oval."

In practice: you can apply most of the oval styling rules, but you'll find that some round-face tips (avoiding chin-length bobs, wearing your hair longer) also apply to you.

Still Unsure?

The best way to resolve the oval vs round question definitively is with our free AI face shape detector. Upload a clear, front-facing photo and get a confidence score for both shapes — you'll see exactly where your face falls.

Related guides:

Try the Free Face Shape Detector →