A wireframe is a rough sketch of a screen before anyone worries about how it looks. It answers the only question that matters early on: what goes where? Get that right and the visual design has something solid to build on.
Block out one screen
Open the wireframe tool and start with a single screen. Drop a big rectangle for the frame, then smaller boxes for the header, the main content and any buttons. Use text for labels like “logo”, “search” and “sign up” rather than real copy. The goal is to see the layout, not to read it.
Keep it low-fidelity
Resist the urge to make it pretty. Plain boxes and a hand-drawn line are exactly what you want here, because they signal “this isn’t final” and keep feedback aimed at the structure. You’ll move far faster sketching ten rough screens than polishing one.
Link screens into a flow
Once you have a few screens, draw arrows between them to show what happens when someone taps a button, meaning which screen comes next. This turns a set of static frames into a simple flow you can walk a teammate or client through.
Share for feedback
Export to PNG or SVG and drop the wireframes into a brief or a chat. Because they’re clearly rough, people comment on what actually matters at this stage: does the flow make sense, and is anything missing? Nothing is uploaded; the wireframes stay on your device until you send them.