Jawline Analysis

The jawline is one of the most prominent structural features of the face and plays a significant role in overall facial aesthetics. A well-defined jawline creates clear separation between the face and neck, contributing to what researchers call facial angularity — a trait consistently rated as attractive in cross-cultural studies.

Our analysis focuses on three key measurements. The mandibular angle — the angle formed where the back of your jaw meets the ascending branch — ideally falls between 120 and 130 degrees. The gonial angle at the jaw corner contributes to the sharpness of your jawline profile. And chin projection measures how far forward your chin extends relative to your lower lip, which affects facial balance when viewed from the side.

Body composition is one of the biggest factors in jawline visibility. Subcutaneous fat beneath the chin and along the jaw can soften the appearance of even a strong underlying bone structure. This is why jawline definition often changes with weight fluctuations — the bone structure stays the same, but its visibility shifts.

You may have heard of mewing, the practice of maintaining a specific tongue posture against the roof of the mouth to supposedly reshape the jaw over time. While proper tongue posture is important for breathing and dental health, the scientific evidence for mewing as a jaw-reshaping technique in adults is limited. Most orthodontic research suggests that significant skeletal changes from tongue posture are primarily possible during childhood development.

Our tool uses MediaPipe Face Mesh to extract 468 three-dimensional landmarks, focusing on the points along the mandible and chin to calculate jawline definition scores. The analysis works best with a front-facing photo in even lighting. Factors like head tilt, camera angle, and lighting can all affect the results, so try to face the camera directly for the most accurate reading.