FREE AI FACE SHAPE DETECTOR
What's your face shape?
Upload one selfie and our AI measures your facial proportions to identify your face shape — free, instant, and fully private.
🔒 100% private: your photo is analyzed in your browser and never leaves your device.
How the face shape detector works
1. 478 landmarks, on your device
A face-landmark AI maps 478 points across your face directly in your browser — your photo is never uploaded anywhere.
2. Four measurements + your jaw angle
It measures face length, forehead width, cheekbone width and jaw width, plus how angular your jawline is — the exact numbers stylists use.
3. Your shape, with proof
Your proportions are scored against all seven face shapes, and the measurements are drawn right on your photo so you can see why.
The 7 face shapes
🥚 Oval
The most balanced shape — length ≈ 1.4× width, softly tapered jaw.
🌕 Round
Length ≈ width, full cheeks, soft rounded jaw and chin.
◼️ Square
Forehead ≈ cheeks ≈ jaw in width, with sharp jaw corners.
💗 Heart
Widest at the forehead, tapering to a narrow, pointed chin.
💎 Diamond
Narrow forehead and jaw with striking, wide cheekbones.
📏 Oblong
Clearly longer than wide, with even widths and a soft jaw.
🔻 Triangle
Widest at the jaw, narrowing up to the forehead.
Frequently asked questions
How do I know my face shape?
Compare four measurements: face length, forehead width, cheekbone width, and jawline width — plus how angular your jaw is. Their ratios determine whether your face is oval, round, square, heart, diamond, oblong, or triangle. This tool measures all of them automatically from one selfie.
How does the face shape detector work?
On-device AI maps 478 landmark points across your face, measures the distances and angles between them, and scores your proportions against each of the seven face shapes. You also see the measurements drawn on your photo.
Is my photo private?
Completely. The AI runs inside your browser — your photo is never uploaded to any server. You can confirm in your browser's network tab: zero requests during analysis.
What are the 7 face shapes?
Oval (balanced, gently tapered), round (equal length and width, soft jaw), square (strong angular jaw), heart (wide forehead, pointed chin), diamond (dramatic cheekbones, narrow forehead and jaw), oblong (noticeably longer than wide), and triangle (jaw wider than forehead).
Why does my face shape matter for makeup?
Blush placement, contour lines, and brow shape all interact with your facial geometry. The same technique that lifts a round face can unbalance a heart-shaped one. Knowing your shape tells you where products go — the Vella app builds complete looks around it.