Subframe

freemium

Subframe is the AI-native design tool for teams who ship. Build with real components, generate pages with AI, and export clean React & Tailwind CSS code instantly.

Vibe Coding Tools

UI UX Design Tools

No-Code App Builders

About

Subframe is an AI-powered, designer-first UI builder that produces real, production-grade front-end code — not mockups, not prototypes, and no AI-generated slop. Designers work in a familiar drag-and-drop canvas with real components (including props, slots, and variants), auto layout, and responsive support, while every layer maps directly to clean React and Tailwind CSS code that engineers can immediately pull via the Subframe CLI (`npx @subframe/cli sync`). The AI layer is deeply integrated and personalized: teams can teach the AI their design system, component library, and product style, enabling context-aware generation of pages, themes, components, and inline edits. Subframe connects to popular AI coding tools like Cursor and Claude Code through MCP and Skills, enabling designers and engineers to collaborate across IDEs and design canvases simultaneously. Collaboration features include real-time multiplayer editing, in-canvas comments, and annotated interactive prototypes. Version history, unlimited AI prototypes, and custom fonts are available on paid tiers. Subframe is purpose-built for startups, freelancers, agencies, and design-system-focused teams who want to close the loop between design intent and shipped UI code — without sacrificing either design quality or developer control.

Key Features

Visual Design → Production Code: Every drag-and-drop action, layer edit, or component insertion maps directly to clean React and Tailwind CSS code engineers can pull instantly via the CLI — no manual handoff needed.
AI-Powered Generation with Personalized Context: Generate full pages, themes, components, or inline elements using AI that learns your design system, component library, and product style for increasingly accurate results.
CLI Sync for Engineers: Engineers run `npx @subframe/cli sync` to pull the latest components directly into their codebase, fully editable in any IDE, with no dependency on proprietary runtimes.
MCP + Skills Integration with AI Coding Tools: Connect Subframe to Cursor and Claude Code via MCP and Skills to sync components, export page code, and prompt new designs directly from the IDE with full codebase context.
Multiplayer Collaboration & Design Systems: Work in real-time with teammates, comment on layers, and build shared component libraries with props, slots, and variants that stay in sync between design and code.

Use Cases

Startups and product teams building web apps who want to ship UI faster without sacrificing code quality or design fidelity.
Design agencies creating client interfaces that need clean, handoff-ready React components without manual developer translation.
Design system teams who want a tool that keeps their component library in sync between the visual design layer and production code.
Developers using Cursor or Claude Code who want to generate and iterate on UI designs directly from their IDE using MCP integration.
Freelancers and solo builders who wear both the designer and engineer hat and want a single tool to go from concept to shipped front-end code.

Pros

True Design-to-Code Workflow: Unlike mockup tools, Subframe outputs real, production-ready React and Tailwind CSS — eliminating the designer-to-engineer translation gap entirely.
AI That Understands Your System: The AI is personalized to your components and design style over time, making generation increasingly accurate and on-brand without retraining on your data.
Flexible for Both Designers and Engineers: Designers get a powerful visual canvas while engineers get clean, fully editable code — both sides of the team benefit without compromise.
IDE Integration via MCP: Native connection to Cursor and Claude Code means AI-assisted UI development can happen directly from the engineering environment.

Cons

Limited Free Tier: The free plan is restricted to 1 project, 5 pages, and 1 AI prototype, which may not be sufficient for serious project evaluation or small teams.
React & Tailwind CSS Lock-in: Subframe's code output is specific to React and Tailwind CSS, making it less suitable for teams using Vue, Angular, vanilla CSS, or other front-end stacks.
Learning Curve for Non-Coders: While no coding knowledge is required to design, getting the most out of component syncing and CLI workflows assumes some developer familiarity.

Frequently Asked Questions

Subframe gives designers direct visual control over UI, not just AI-generated output. You work with real components in a structured canvas, and the code it exports is clean and deterministic — not AI-generated markup that varies with every generation.

Both. Designers use the visual canvas to build and iterate on UI, while engineers pull the resulting code via CLI and focus on business logic. The two workflows are complementary and run in parallel.

Subframe is not a replacement for Figma's full feature set, but it is designed to replace the Figma-to-code handoff step entirely. Teams who primarily build web apps may find it replaces their Figma workflow for UI work.

Yes. Using the Subframe CLI, engineers can sync components directly into their codebase. Subframe also integrates with AI coding tools like Cursor and Claude Code via MCP and Skills for IDE-level access.

No. Your designs are only used to personalize the AI within your own projects. Subframe explicitly states that your data is not used to train shared AI models.