GUI planning tools

Turn the interface idea into a buildable specification.

Describe platform, users, screens, components, states, data, interactions and accessibility requirements. FastGUI.com generates a structured spec you can hand to a designer, developer or coding assistant.

Build a GUI spec Component checklist

Developer utility

From “I need a dashboard” to screens, states and interactions.

GUI spec builder

Generate a structured screen/component/state spec from a plain-language interface brief.

Build spec

Component checklist

Identify likely navigation, forms, tables, cards, modals, empty states, loading states and errors.

Open checklist

AI-ready UI prompt

Convert the same GUI brief into a clean implementation prompt for a coding assistant.

Build prompt

PlatformWeb / mobile / desktop

ScreensFlows

StatesEmpty / loading / error

AccessibilityKeyboard / labels / focus