Flowstep

Flowstep sits between the prompt and the shipped interface. Instead of dropping a static mockup on you, it generates multi-screen UI from context you already have — a written PRD, a screenshot, or the URL of your existing product — and reads that context to match your product rather than requiring long, detailed prompts. Everything you create maps one-to-one to code, so you can preview genuinely interactive designs in seconds or export the code and ship it.

The editing model is deliberately dual: you can chat to change anything, or click an element and edit it directly on the canvas. A style and instruction layer helps keep iterations consistent — a theme holds colors and corner rounding, while file instructions carry product rules, tone and layout conventions, so every generation and edit follows both without repeating them in each prompt. The tool also offers a Figma bridge: paste any Flowstep frame into Figma with a normal copy and paste, or import Figma frames as fully editable screens, without a plugin.

Flowstep also positions itself as the design surface for coding agents. Its MCP server connects Cursor, Claude Code, Windsurf and Codex so you can generate screens, edit designs and keep file instructions in sync without leaving the editor. Teams can design together in real time with live cursors and shared edits, then share a clickable prototype that anyone can walk through. Getting started is free with no credit card required, and the vendor states it does not use personal data to train AI models.