How do you make a corner curve in Illustrator?
To round corners in Adobe Illustrator, select the object, grab the Direct Selection Tool, then look for the Live Corner Widgets; represented by circular handles near the corners of the design. Moving these handles will round the corners of your object.
How do I make rounded corners in Illustrator?
Your first option to to select your line tool, draw a line, and then from the top tool bar, select the “brush definition” menu. From the corresponding drop-down menu, select one of the circle options at the top (10 pt. Round). This will effectively give you line rounded corners.