True Mirror Face Test & Non-Reversed Asymmetry Viewer
Compare your non-reversed real-world face against your bathroom mirror reflection, test Left-Left and Right-Right hemisphere composites, and quantify bilateral symmetry across 478 keypoints.
Zero server uploads · 100% browser-localSAGITTAL SPLIT
Upload Your Portrait or Selfie
Compare your non-reversed face vs. mirror reflection and measure bilateral symmetry.
Natural human symmetry typically ranges between 82 and 96 on front-facing portraits
Measure Your Full 0–100 Harmony Score
Combine your bilateral symmetry score with Golden Ratio & Canthal Tilt analysis.
Sagittal Midline & Bilateral Pair Trigonometry478 KEYPOINTS
Why Inverted Selfies Exaggerate Facial Asymmetry
Every human face has 1%–3% natural bilateral asymmetry across the brow, eye axis, cheekbones, and jawline. Here is why flipping your photo makes tiny offsets feel dramatic to you — while remaining invisible to others:
Mirror Habituation Effect
You see your horizontally flipped reflection in a mirror every day. When a camera flips the image to show how others see you, a 1.5° tilt reverses direction and feels doubled in your perception (3.0° apparent shift).
24mm Wide-Angle Distortion
Smartphone front cameras taken at arm's length enlarge central features (nose) by up to 15% and compress outer jawline contours.
Natural Head Roll & Yaw
Most people naturally tilt their head 1.5°–3.5° when looking into a lens, creating apparent vertical offset on a 2D grid even when bone structure is highly symmetric.
Read Our Guide on Facial Proportions
Learn how bilateral symmetry interacts with the 1.618 facial golden ratio.