Pixactly — a pixel-dimension estimation game
Draw a rectangle to match a target width and height by eye, then review your accuracy across five rounds.
Resources
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Tools 3
Sinwaver — sine wave SVG generator
A focused browser tool for sine-wave lines with amplitude, wavelength, phase and stroke controls, plus SVG export.
Pattern Monster — Seamless SVG Pattern Generator
A free library of 320+ seamless patterns with customizable colors, stroke width and angle, plus CSS/SVG copy and SVG or PNG export.