Pro
Duply makes AI-built interfaces feel less random by giving agents a concrete DESIGN.md for typography, spacing, colors, and layout direction.
Duply
Duply is a design-system library for people building websites, apps, and SaaS products with AI coding tools. It turns real product interfaces into practical DESIGN.md files that describe how a design system actually feels and works, from typography, spacing, colors, components, layout patterns, and interaction rhythm to the overall visual direction. Instead of making your AI agent invent a style from a vague prompt, you can choose a reference from the Duply library, copy the DESIGN.md, and use it as a clear design guide inside your workflow. This helps AI-generated interfaces look more consistent, polished, and intentional from the first build. Duply is especially useful for founders, developers, designers, AI builders, and vibe coders who want faster UI direction, fewer random design choices, and less back-and-forth prompt tweaking.
Reviews of Duply
4.1
Con
The free library is handy, but the $225 Launch Kit may feel like a designerly detour if you only came for a style cheat sheet.
Introduction
Duply is a handy design reference library for anyone building with AI coding tools. It turns real product interfaces into structured DESIGN.md files covering colors, type, spacing, components, and layout feel, helping founders, developers, and vibe coders get more consistent, polished UIs without endless prompt tweaking.
What is the most typical application scenario of Duply?
A founder using an AI coding agent can copy a Duply DESIGN.md into the build workflow to give the agent clear UI direction and ship a polished, consistent SaaS prototype faster.
Features of Duply
Browse design-system references based on real product interfaces
Copy structured DESIGN.md files into AI coding workflows
Guide typography, spacing, colors, components, and layouts
Reduce inconsistent UI choices from vague design prompts
Support websites, SaaS apps, dashboards, and product screens
Use cases for Duply
Give AI coding agents clear visual direction before building
Create polished landing pages without defining every UI detail
Keep SaaS dashboards and app screens visually consistent
Help founders prototype product interfaces faster
Give developers reusable design guidance for AI-built UIs
Pricing info of Duply
FreemiumPublic pricing information collected from the official website.
duply.ai Pricing
Launch Kit
$299 $225 One-time payment/one-time
- Production-ready codebase where every screen ships on mock data
- AI wires each integration with one prompt
- Styled by the DESIGN.md you pick
- Auth Supabase
- Payments Stripe
- Analytics GA4
- Email Resend
- Product PostHog
Browse the library
Free
- Free to browse
- Real design systems, documented as DESIGN.md
- New designs land weekly
Last checked Jul 8, 2026. Visit the official website for the latest terms.