Face Shape Detector: AI Reads Your Face, Then Shows You the Cuts
Upload one selfie and the AI maps 68 points across your face, the same landmarks a stylist would eyeball, then classifies your shape and shows the haircuts built for it. No guessing in a mirror, no quiz, just a measurement.
Detector, Scanner, Analyzer, Finder: Same Tool
People search this five different ways: face shape detector, scanner, analyzer, finder, checker. They're all asking for the same thing, a tool that reads your shape from a photo instead of a mirror and a guess. This tool is built to answer all five.
One scope note: this detector is built for hairstyles. If you're shopping for glasses shaped to your face, a frame-fitting tool will serve you better. Ours measures your proportions against 180+ haircuts, not lens shapes.
How the Detector Reads Your Face
The detector places 68 landmark points across your photo: your hairline, cheekbones, jaw, and chin. From those points it measures six proportions and scores them against each other.
That's the same comparison a stylist makes by eye in about three seconds. The difference is the detector measures instead of estimates, which matters most for faces that sit between two categories and get miscalled by a quick glance. The result lands in one of seven shapes: oval, round, square, heart, diamond, long, or triangle.
What Each Face Shape Means for Your Hair
A shape name is only useful if it tells you what to do next. Here's the short version of the six most common shapes, with the deeper style guide linked if you want it:
| Shape | How to spot it | What balances it |
|---|---|---|
| Oval | Length about 1.5x width, forehead slightly wider than the jaw, gently rounded edges. | The most forgiving shape. Nearly every cut works. |
| Round | Width and length are close to equal, with a soft, curved jawline. | Cuts that add height or angles balance it best. |
| Square | Forehead and jaw are similar width, with a strong, angular jawline. | Movement and softness balance the strong lines. |
| Heart | Forehead is the widest point, narrowing to a smaller chin. | Cuts that add width near the jaw balance it. |
| Diamond | Cheekbones are the widest point, forehead and chin both narrow. | The rarest shape. Cuts widening forehead and chin balance it. |
| Long | Face length clearly exceeds width, with a narrow jaw and high forehead. | Width balances it. Extra height only stretches it further. |
Detector vs. Mirror vs. Quiz: Is It Actually Accurate?
Three ways to find your face shape, and they don't agree as often as you'd think:
| Method | How it works | Where it fails |
|---|---|---|
| Mirror | You eyeball your own proportions. | Hardest to be objective about your own face, especially at odd angles. |
| Quiz | You answer questions about your features. | Only as accurate as your own self-assessment. |
| AI detector | 68 points measured from a photo. | Needs a clear, front-facing photo to work well. |
If you already know your shape with confidence, a quiz is a fine, faster confirmation. If you've ever been told two different face shapes by two different people, that's exactly the case measurement solves and guessing doesn't.
Your Photo, Your Privacy
Uploading a photo of your face is a reasonable thing to hesitate over, so here's the exact policy, not a vague promise. Your photo is encrypted, used to run the detection and your style previews, and stored securely tied to your account so you're not re-uploading it every time.
It's automatically deleted after 14 days, never sold or shared with third parties, and never used to train AI models for other users. You can delete your photo, or your whole account, at any time from settings.
One Photo, Three Steps
Upload one clear selfie
Front-facing, even light, hair away from your forehead and hairline so the landmarks read correctly.
The AI measures 68 points
Landmark detection maps your hairline, cheekbones, jaw, and chin, then scores six proportions against each other.
See your shape and your cuts
Your result lands in one of seven face shapes, paired with the haircuts our catalog rates best for it.
Already know your shape and just want the cuts? Upload one selfie to the see which hairstyle suits you with AI and get your 4 best matches in about 30 seconds — free.
Frequently Asked Questions
Is there a free face shape detector?
Yes. Upload one selfie to HaircutAI and the AI measures 68 facial landmark points, classifies your face into one of seven shapes, and shows the haircuts our catalog rates best for it. It works in the browser at haircutai.app and as a free iOS app, and the shape detection itself takes about 10 seconds.
What's the difference between a face shape detector, scanner, and analyzer?
Nothing, really. They're different words for the same idea: a tool that measures your face shape from a photo instead of asking you to guess in a mirror. HaircutAI's version places 68 landmark points, measures six proportions, and returns your shape plus the cuts that fit it, whichever word you searched to find it.
Does this work for glasses, or just hairstyles?
Just hairstyles. This detector measures your proportions against 180+ haircuts, not lens shapes or frame styles. If you're shopping for glasses, a frame-fitting tool built for that purpose will serve you better than a hairstyle-focused detector will.
Can I use my phone camera for a face shape check?
Yes, that's the intended way to use it. Take or upload a front-facing selfie in even light with your hair away from your forehead and hairline. No app install is required to try it in a browser, though the free iOS app works directly from your camera roll if you'd rather use that.
How accurate is an AI face shape detector compared to a quiz?
A quiz is only as accurate as your own self-assessment, which is exactly where most people get their shape wrong, especially if you sit between two categories. Landmark detection measures your actual proportions instead of asking you to estimate them, which removes that guesswork. If you've ever been told two different face shapes by two different people, that's the case measurement solves and a quiz doesn't.
Is my photo safe? Do you store it?
Your photo is encrypted, used to run the detection and your style previews, and stored securely tied to your account so you don't have to re-upload it each time. It's automatically deleted after 14 days, never sold or shared with third parties, and never used to train AI models for other users. You can delete your photo or your account at any time from settings.
Measure It, Don't Guess It
One selfie, 68 points, your face shape and your best cuts in about ten seconds.