Plus Rounded Square black outline icon
Outline icon of a plus sign centered inside a rounded square frame
About the Plus Rounded Square black outline icon
Two equal strokes cross at the center of a rounded square frame, forming a balanced plus with generous padding on all sides. The shape reads as add, create, expand or increase, so it works as a new-item button in dashboards, an upload control in file managers, an accordion expander in FAQs, a zoom-in control on maps and a quantity stepper in checkout forms.
The frame corners use a large radius, matching the soft button styling of modern app toolbars, and the plus arms stop well before the edge so the mark never feels cramped. Flip it with a minus icon for stepper pairs, or with a close icon for toggles. It stays crisp down to 16 px because there are only three simple shapes.
This is the black outline version of the plus rounded square 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.
