Square Wave Signal black outline icon
Square wave signal with two rounded rectangular pulses stepping up and down along a baseline
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About the Square Wave Signal black outline icon
This icon traces a square wave: a flat baseline that jumps to a tall rounded-corner pulse, drops into a trough and steps back up again. It reads instantly as a digital signal, clock pulse or oscillator output, which makes it useful in audio plugin interfaces, electronics tutorials, synthesizer app toolbars, lab report slides and IoT monitoring dashboards.
The stroke keeps a uniform weight with softly rounded corners, and the two pulses sit at different heights to suggest a repeating cycle rather than a single event. It sits well beside sine, sawtooth and triangle wave icons in an oscillator set. Keep it above 24 px so the vertical risers stay distinct.
This is the black outline version of the square wave signal icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
