Eyebrow map

An eyebrow map places colored start, arch and tail guide rays over a front photo, then marks the detected brow points in white. The browser compares where each point sits horizontally at its own height and expresses the gap relative to eye width. This is a drawing aid for trying a style, not a prescription for identical brows. The photo and calculation stay in the browser.

What an eyebrow map plots at the head, arch and tail

The word “map” describes a drawing convention: use landmarks around the nose and eye to discuss where a brow starts, reaches an arch and ends. Brow hair grows in many patterns, and shape is affected by styling, expression and density. A guide can help you notice spacing or balance without treating one diagram as the correct face for everyone.

Nose-to-eye rays and brow points

Three rays start from each nostril wing: one passes through the inner eye corner toward the brow head, one through the outer iris edge toward the arch, and one through the outer eye corner toward the tail. At each detected brow point, the tool compares horizontal placement with its ray and expresses deviation as a percentage of that side’s eye width. White markers show the detected points. The eyebrow map produces six separate deviations, one for each head, arch and tail point on both sides, instead of reducing them to one brow score.

Interpreting horizontal deviation

Use the overlay as a starting sketch. If a brow tail sits outside a guide, that may be a style choice or a landmark error, not a flaw. Check each side separately; most brows are not exact mirror images. The reference rays are proportional to the photo and should be read alongside the eye and face outline rather than as fixed millimeter targets.

Imagine a hypothetical arch point reported as +8% of eye width from its guide. The plus sign says the white brow marker lies farther outward than the reference ray at that same vertical height; −8% would place it inward. Neither number means the brow is eight percent too long. This eyebrow map compares positions against a styling construction. A pencil line can preview a different look, but it does not prove where the brow ought to be.

The eyebrow map uses the actual height of each brow marker when extending its guide ray. That means a raised brow peak can shift the expected horizontal intersection even if its lateral position barely changes. If the map seems to suggest a very different arch between two photos, compare the two brow expressions before considering cosmetic styling. The eyebrow map deviation is measured along the image’s horizontal axis and normalized to eye width; it is neither millimeters of hair removal nor a recommendation to pluck the brow.

Why an eyebrow map shifts with roll or makeup

The reference rays are drawn in the original image plane rather than a leveled face frame. Even a modest head roll can shift the brow relative to its guide, so keep the camera upright. Heavy brow makeup, very sparse hair or a fringe can make the detected arch disagree with the visible hair. Inspect the white point before using a deviation number. For a level brow guide image, read how to take a photo for a PSL rating.

The guide rays are styling references

The rays describe placement only. They do not measure individual hair follicles, density, color or the effect of a particular pencil shade. A brow can sit on its reference ray and still look different depending on thickness and expression. The eyebrow map is therefore most useful as an overlay to inspect, not as an instruction to remove hair.

A zero deviation means one detected point lies on its ray at that height, not that the brow is ideal. The eyebrow map applies the same construction to men and women and provides no sex-specific target. Before comparing grooming ideas, use an unaltered image to see where the model places the three white points. Then try reversible makeup or shaping only if it suits the look you want.

Check the brow against the eye area

Compare canthal tilt if you want to see the eye-corner orientation under the brow. The eye type detector adds eye opening and spacing. A low arch reading in the eyebrow map should not be interpreted as an eyelid classification or as evidence that a brow needs correction.

Eyebrow map FAQ

Where does an eyebrow map place the brow start?

The guide projects a line from the nose-wing area as a visual reference, not a mandatory endpoint.

Does the eyebrow map measure the arch?

It shows a reference peak and the detected brow peak so you can compare them.

Are different left and right brows normal?

Yes. Natural asymmetry and expression can make them differ.

Can makeup affect mapping?

Yes. Strong drawn edges may influence where a landmark model places the brow.

Does the tool tell me to pluck my brows?

No. It provides a diagram, not a grooming instruction.

Is the photo uploaded?

No. The mapping runs in your browser.