Live preview
The running app, in real time.
The preview is the agent's render — not a screenshot, not a static thumbnail. Watch the UI come together while they write it, and click through it the moment it compiles.
The app, not a screenshot.
Watch the UI appear as the agent writes it, line by line. No static thumbnail; the real running thing.
Sub-second recompiles.
In-browser bundler. Every file change is on screen before you finish blinking.
The agent fixes its own work.
Compilation errors and console logs are part of the agent's feedback loop. You see the fix, not the failure.
Every viewport, no detour.
Flip to tablet or mobile in one click. Same workspace, same file tree, different render.
Start building with Prototyper.
Open the workspace. Drop in an idea. Let an agent take the first shot. Ship the same artifact you sketched.