Flowstep

Flowstep generates multi-screen UI from prompts, PRDs, images or URLs, then lets teams refine it by chat or by hand on a canvas that stays 1:1 with code. Designs export as code or prototypes, sync with Figma, and connect to Cursor, Claude Code, Windsurf and Codex through an MCP server.

Flowstep is a browser based design canvas built around the idea that screens should stay in sync with code. A prompt, a product requirements document, a screenshot or a live URL becomes a starting point: the tool reads the context and lays out multi-screen UI rather than a single static mockup. Every frame is described as 1:1 with code, so what shows on the canvas can be previewed as an interactive prototype or exported as code instead of being rebuilt later. The team behind it markets the product as a canvas for agents, and the framing is accurate: agents are first class citizens here. The editing model is deliberately mixed. Users chat with the AI to change layout, copy or styling, then click any element and adjust it directly on the canvas when a manual nudge is faster. Design guidelines hold colors, typography and spacing, and every generation and edit follows them; telling the tool to adopt a new brand color updates the stored rules themselves. That keeps repeated iterations from drifting out of style, which is the usual failure mode of chat driven design. Prototypes can be shared as clickable walkthroughs, and teammates edit in real time with live cursors. For engineering leaning teams, the MCP server is the differentiator. Cursor, Claude Code, Windsurf and Codex can connect and generate screens, edit designs or pull guidelines into sync without leaving the editor. Components can be imported from an existing codebase, rendered on the canvas and iterated visually. Figma users are not left out: frames copy and paste between the two tools without a plugin, in either direction. Flowstep sits closest to prompt to UI tools and AI website builders, but its code fidelity, agent connections and two way Figma bridge push it toward product teams that ship. Designers use it to kickstart concepts quickly, while engineers and solo founders can produce presentable interfaces without deep design skills.