Read the target
Turn a width and height into a rough proportion before your pointer touches the canvas.
01
The practice loop
Five rounds. One honest first guess.
Pixel intuition is not a mysterious talent. It is a feedback loop: picture a size, draw it once, compare the miss, and make one correction next time. Pixactly keeps that loop short enough to repeat.
Commit by eye
Draw the rectangle without a ruler, inspector, or measurement overlay to rescue the estimate.
Read the difference
Separate width error from height error, then carry one deliberate adjustment into the next round.
02
Useful feedback
Read the miss, not just the score.
Target180 × 96
Your estimate196 × 88
Width+16px
Height−8px
Two rectangles can feel similar while missing in opposite directions. Here, the estimate is too wide and too short. A single total score hides that pattern; axis-by-axis feedback gives you something specific to correct.
Across five rounds, Pixactly also shows average width error, average height error, accuracy, time, and the personal best stored in your browser. No account is required.
Understand the scoring03
Field notes
Start with the essentials.
How to estimate pixels by eye
Build a small set of visual anchors, judge each axis separately, and turn repeated misses into useful corrections.
↗How Pixactly scoring works
Read size match, pixel difference, round score, and the width-versus-height pattern behind a result.
↗Visual calibration for designers
See why immediate feedback improves spacing, proportion, and layout judgment over repeated short sessions.
↗04
Before you begin
A small game with a practical purpose.
What does Pixactly train?
Visual judgment for width, height, proportion, and screen-space relationships—not medical vision and not a claim about design talent.
Do I need an account?
No. The game runs in your browser, and your personal best stays locally on the device you use.
Does it replace measurement?
No. Exact tools still belong in production work. Pixactly sharpens the visual estimate that comes before inspection.
Ready to test your first guess?
Start five rounds
Nuoy
