A pixel accuracy training game.
Pixactly is a browser game that helps designers and frontend builders practice pixel estimation by eye. Each round gives you a target width and height. You draw the rectangle by sight, then Pixactly scores how close your visual judgment was to the actual size.
How it works
You enter the game, review the target dimensions for the round, and draw a rectangle directly on the canvas. Your score is based on how far your rectangle is from the target size.
There is no account, no leaderboard, and no hidden trick. The best score is stored locally in your browser so you can compare against your own last few attempts. That keeps the game closer to practice than competition.
What Pixactly trains
The exercise is simple on purpose: estimate width, estimate height, draw once, and compare the result. Repeating that loop helps you notice whether you tend to overshoot wide shapes, compress height, or misread proportion.
That kind of visual calibration is useful when working with spacing scales, component sizes, cards, buttons, and responsive layouts. It does not replace measuring, but it makes the first design judgment sharper.
Why designers like it
A lot of design work starts with a rough visual call: does this button feel too tall, is that card wider than it should be, are two gaps actually the same size? You still measure things, of course, but the first guess matters. Pixactly turns that guess into a short repeatable exercise.
Origins
Pixactly was originally created by David and Dan.
The original version lived at pixact.ly. The current site moved to pixactly.app and keeps the same basic idea: a quick browser test for people who spend too much time thinking about spacing, layout, and whether something is really 120px wide.
What the current site includes
- A landing screen with the game entry point
- A five-round rectangle drawing challenge
- Round-by-round scoring and total score tracking
- Local best-score storage in your browser
- Mobile controls for touch screens
- Short guides about pixel judgment and visual calibration
What it is not
Pixactly is not a scientific vision test and it is not meant to grade anyone as a designer. It is a small, original calibration tool built around drawing, scoring, and repetition. Play a set, notice the misses, then try again with one correction in mind.