Photo stays local
The free detector processes the selected image in this browser.
Free · No login · On-device
Free Face Shape Detector for Glasses
Find whether your face is oval, round, square, heart, diamond, oblong, or triangle. Use the result to shortlist glasses, then validate frames on your own photo.
Free on-device tool
Upload one straight-on photo
Your photo and raw landmarks stay in this browser. This tool does not upload or store them.
JPG, PNG, or WebP · up to 10 MB
For the clearest result
Use one centered face, level eyes, even lighting, and a visible forehead and jaw.
What this free result includes
- A likely result across seven face-shape categories
- A live landmark mesh drawn over your photo
- Six visualized geometry and alignment details
- Quality checks for multiple faces, tilt, and face size
This is a styling estimate, not identity recognition, medical advice, or a physical frame-size measurement. Your selected image remains in browser memory.
Photo stays local
Geometry-based estimate
Practical result
Geometry-based estimate
Facial landmarks are converted into corrected proportions.
Practical result
Use the result as a styling guide, not a rigid label.
For the clearest result
- Use one face with a neutral expression.
- Keep both eyes level and look at the camera.
- Pull hair away from the forehead and jaw.
- Avoid strong shadows, filters, and wide-angle distortion.
Prefer to check manually?
Compare face length, forehead, cheekbones, and jaw without uploading a photo.
Open the measurement guideWhat the AI Face Shape Detector Measures
The detector compares four visible proportions: forehead width, cheekbone width, jaw width, and overall face length. Together, these measurements provide a practical estimate of your likely face shape from one clear photo.
Common Face Shapes
Common face shapes include round, oval, square, heart, diamond, and oblong. The boundaries are visual guidelines rather than fixed labels, so comparing the full set of proportions is more useful than relying on one feature alone.
Learn how to identify your face shape
What a Face Shape Analysis Result Shows
A useful result connects the estimated shape to the measurements behind it. Use the result as a starting point for glasses discovery, then validate frame width, lens depth, bridge position, and overall visual balance.
See how to use your face shape resultFree face shape detector FAQ
Is this face shape detector free?
Yes. It requires no account or credits.
Is my photo uploaded?
No. This detector processes the selected photo in browser memory.
Can I use this face shape detector for glasses?
Yes. Continue to the AI Glasses Advisor for personalized frame recommendations, then try your top picks on your photo.
How accurate is it?
Pose, lighting, hair, and mixed proportions affect the estimate. Use it as a styling shortcut.