Face Symmetry Test

A face symmetry test uses AI to measure how balanced the left and right sides of your face are. It maps hundreds of facial landmarks and compares corresponding points — eye corners, brow positions, nose alae, mouth corners, and jaw contour — to produce a score from 0 to 100%.

Scores of 85% or above are considered highly symmetric. Most people score between 70% and 84% ("typically symmetric"), which is completely normal. Scores of 55–69% indicate noticeable asymmetry, and below 55% suggests significant asymmetry — though this can also result from photo angle or lighting.

Yes — virtually every human face is asymmetric to some degree. In fact, perfect symmetry is extremely rare in nature. Natural asymmetry is caused by genetics, how we sleep, which side we chew on, dominant hand use, and many other factors. Slight asymmetry is a hallmark of a real, human face.

Research suggests a modest correlation, but it is far from deterministic. Many people with notable asymmetry are considered very attractive, and attractiveness is influenced by far more factors — expression, skin, character, proportion, and personal taste. This tool does not make any attractiveness judgments.

Accuracy depends heavily on photo quality. A clear, well-lit, front-facing photo with a neutral expression will yield the most reliable score. Tilted heads, off-angle shots, shadows across one side of the face, strong expressions, or glasses can all reduce accuracy. The auto-level feature corrects for minor head tilts automatically.

Lighting direction, head angle, expression, and camera lens distortion all affect landmark positions and thus symmetry scores. For the most consistent results, use a front-facing photo in even, natural light with a neutral or slight-smile expression. Avoid strong side lighting or wide-angle lenses at close range.

No. All processing happens entirely in your browser using MediaPipe — your photo never leaves your device and is not uploaded to any server.

The test analyzes five feature groups: Eyes (outer corners, inner corners, eyelid openness), Eyebrows (arch height and position), Nose (tip position relative to midline, alar base width), Mouth (corner heights and width balance), and Jaw / Chin contour (paired cheek and jaw outline points). Each group contributes to the overall weighted score.

Facial asymmetry has multiple causes. Genetic factors are primary — the genes guiding facial development produce inherently asymmetric results. Environmental factors during development (in-utero position, sleeping side preference, dominant chewing side) add to this. Injuries, dental changes, muscle overuse on one side, and ageing all contribute further asymmetry over time.

Natural anatomical asymmetry can be addressed cosmetically through contouring makeup, strategic hairstyles, and glasses frames that balance proportions. Clinical options include orthodontics (which can affect jaw position), fillers (to balance volume), or surgical procedures for significant anatomical differences. This tool cannot advise on treatment — consult a qualified practitioner for clinical concerns.

Generally yes — subtle asymmetries become more pronounced with age as collagen loss, gravity, sun exposure, and repeated facial muscle use (which tends to be stronger on the dominant side) create different effects on each side of the face. Sleeping consistently on one side also increases asymmetry over decades.

Research is nuanced here. While high symmetry correlates modestly with attractiveness ratings on average, studies also show that perfectly mirrored faces often appear unsettling ("uncanny"). Character, expression, and individuality — all of which involve asymmetry — are strongly weighted in real-world attractiveness. This test measures geometry, not beauty.

Studies suggest the left side of the face (as viewed by the subject) tends to be perceived as more expressive and is used more often in emotional expression, while no side is consistently more "symmetric" across populations. Individual variation dominates — your score report breaks down which feature pairs showed the most deviation.

Yes — heavy contouring reshapes perceived facial edges (affecting jaw and cheek landmarks), bold brow makeup shifts brow position readings, and hair covering one side of the face introduces artificial occlusion the AI may interpret as asymmetry. For the most accurate anatomical score, photograph your natural face in minimal makeup.

The midline overlay draws the computed vertical axis of your face based on symmetrical reference points (brow centres, nose bridge, lip centre, chin). Left–right landmark pairs are then shown as dots, letting you see visually which features sit closer to or further from the midline on each side.

No. This tool is for entertainment and educational use only. Facial asymmetry can sometimes be associated with medical conditions, but this AI tool cannot diagnose, detect, or rule out any health condition. If you are concerned about sudden or significant facial asymmetry, please consult a qualified healthcare professional.

The score is a measurement, not a prescription. Natural asymmetry cannot be "fixed" from a photo. That said, improving photo conditions — even lighting, level head position, neutral expression, and a higher-quality front-facing camera — will give a score that more accurately reflects your natural symmetry.

70% and above is considered normal to good facial symmetry. 85%+ is highly symmetric and relatively rare. The most important thing to know is that almost no one scores 100%, and a score in the 70–84% range is the typical result for a healthy human face photographed correctly.