Replit Agent 4 Adds Visual Design Canvas With Live App Editing

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Replit Agent 4 introduces an infinite design canvas that lets you tweak UI visually and apply changes directly to your running app. You can explore multiple design variants on any element while the agent builds other parts in parallel.

Replit Agent 4 ships a design canvas where you visually edit your app's UI on an infinite workspace, then apply those changes directly to your app. You can refine hover states, responsive overrides, and multi-select elements with edits taking effect immediately. A "Generate variants" option on any element produces multiple design options you can compare in context and apply with one click.

Visual design controls run alongside concurrent agent execution — you handle look-and-feel while Agent 4 tackles auth, database, and backend tasks simultaneously by forking work and recombining results. Teams get a task-based workflow where multiple users submit requests and the agent sequences them automatically.

Open your Replit project and use the design canvas to tweak layouts and interactions visually while the agent builds the rest of your app in the background.

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🎨 Design freely with Agent 4. - Design while the agent builds. - Explore multiple UI variants on an infinite canvas. - Make precise UI edits that you can apply directly to your app. https://t.co/I9O53qxsru

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