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Kois Optics
Find the perfect frame for your face
Detect your face type with your camera in seconds and get personalised recommendations on which glasses flatter you most.
Private by design — no photos are stored. Everything runs in your browser.
How it works
Three quick steps to know your face shape and the frames that suit you.
Allow camera
Tap the button and grant camera access when your browser asks.
Face the camera
Look straight at the camera and hold still for a moment.
Get your result
Instantly see your face type and the frames that suit you best.
Know your face type
Six face shapes and the frames that suit each one best.
Oval
Balanced proportions. Most frames suit you — try bold shapes.
Round
Soft curves, fuller cheeks. Angular, rectangular frames add definition.
Square
Strong jawline, broad forehead. Round or oval frames soften the angles.
Heart
Wider forehead, narrower chin. Light or rimless frames balance proportions.
Long
Longer than wide. Taller frames and bold temples add width.
Diamond
Narrow forehead and jaw, wide cheekbones. Cat-eye and oval frames highlight your cheekbones.
Curated Sunglass Guide: The Perfect Frame for Your Face Shape
1. Round Face
Square
Rectangular
Butterfly
2. Oval Face
- Butterfly
Cat-Eye- Square
Irregular
Aviator
3. Heart-shaped Face
- Aviator
- Rectangular
4. Square Face
Round
Oval- Cat-Eye
5. Diamond Face
- Oval
- Cat-Eye
Frequently asked questions
Do I need to install anything?
No. It runs in your browser using your device's camera — nothing to download.
Are my photos or videos stored?
No. Everything runs locally in your browser. Nothing is uploaded or saved.
Which devices work?
Any smartphone, tablet or computer with a camera and a modern browser such as Chrome, Safari, Edge or Firefox.
What does my face type tell me?
It helps you understand which frame shapes and styles balance and flatter your features.
Is it free?
Yes, it is completely free to use.
Ready to find your perfect frames?
Detect your face type now and discover the styles that suit you best.
