Free · No login · On-device

Free Face Shape Detector Online

Check whether your face is oval, round, square, heart, diamond, oblong, or triangle from one photo, privately in your browser. Use the estimate to explore glasses styles, then try 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.

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

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.

What the AI Face Shape Detector Measures

AI face shape detector measuring forehead width, cheekbone width, jaw width, and face length

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.

Guide comparing round, oval, square, heart, diamond, and oblong face shapes

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
Example face shape photo analysis result with facial proportions and a likely 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 result

What each face-shape result means when choosing glasses

The free test is a styling estimate, not a definitive label. These guides explain the seven possible results and frame directions worth comparing on your own photo. Width, comfort and personal preference still matter.

Oval face: glasses guide

A face that is slightly longer than it is wide, with balanced proportions and a softly tapered jaw.

Try first: Balanced rectangular frames · Browline frames

Round face: glasses guide

A face with similar visible width and length, fuller cheeks, and a gently curved jawline.

Try first: Rectangular frames · Square frames

Square face: glasses guide

A face with a broad forehead, a strong jaw, and similar width through the upper and lower face.

Try first: Round frames · Oval frames

Heart face: glasses guide

A face with more width through the forehead or upper cheeks and a noticeably narrower, often pointed chin.

Try first: Lightweight frames · Rounded frames

Diamond face: glasses guide

A face where the cheekbones are the dominant width, with a narrower forehead and jaw.

Try first: Oval frames · Rimless frames

Oblong face: glasses guide

A face that is noticeably longer than it is wide, with relatively consistent width from forehead to jaw.

Try first: Deep rectangular frames · Oversized frames

Triangle face: glasses guide

A face with a jawline wider than the forehead, creating an outline that becomes broader toward the bottom.

Try first: Browline frames · Cat-eye frames

Free 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.