The verdict: can you vibe code Sleek?
Build a personal subset for yourself, but keep paying if you want the polished Figma clipboard bridge and agent skills. The single biggest catch is engineering the LLM layout AST parser to output clean, valid mobile component trees instead of jumbled divs.
Sleek is a focused SaaS combining prompt generation with mobile layout parsing and a clever clipboard exporter. While a solo developer canvibecode a personal clone that generates mobile mockups and exports Tailwind React code within a couple of weeks, replicating the exact clipboard schema that pastes directly into Figma as native editable vector layers without a custom plugin requires reverse-engineering complex clipboard formats. Additionally, building the REST API and agent skill for terminal tools takes rigorous backend discipline. Unless you want it purely as an interesting sandbox project, subscribing to the real product saves you hours of clipboard debugging.
Estimated effort: 2-3 weeks part-time
What you can't replicate
- The exact proprietary clipboard schema for native Figma vector/layer paste without a plugin
- The active community of 60,000 founders and pre-built design reference library
Founded
2025
Raised
—
Team
1-5
Cheapest paid tier
$0
What Sleek does
Generate multi-screen mobile UI mockups, layouts, components, and complete design flows purely through natural language prompting or reference image uploads with one-click export to Figma or React/Tailwind code.
Core features
- Text-to-Mobile-UI Generation with strict adherence to iOS Human Interface Guidelines and Material Design
- Multi-screen generation (Bento grid, glassmorphism, neo-brutalism, soft clay styles)
- Visual editor with inline manual tweaking of layouts, styling, and text hierarchy
- One-click copy/paste directly into Figma as native, fully editable layers without plugins
- Code export to HTML and React with Tailwind CSS
- REST API and AI coding agent skill integration for Claude Code, Cursor, and Codex
The business
Pricing
- Free$0
- Starter$24.99/mo
- Pro$49.99/mo
- Team$69.99/user/mo
Funding
Unknown / bootstrapped
Pay vs build, cumulative
Break-even at month 2 — after that, every month is money kept.
The hard parts of vibe coding Sleek
- Prompt-to-layout pipeline constraining LLM output into precise structured JSON AST for mobile UI components rather than broken text
- Clipboard serialization supporting native Figma paste schemas as editable vector/layer nodes
- AI agent protocol and token-bucket credit metering tied to Stripe webhooks
- Rendering accurate mobile dimensions, safe areas, and tap-target sizing consistently across aesthetic themes
How to vibecode Sleek
Prerequisites
Node.jsfree
Runtime for Next.js full-stack framework
GitHubfree
Source control and deployment pipeline connection
Anthropic API keypay-as-you-go
Powers the Claude model generating UI component layouts
AI coding tools
Recommended stack
| Frontend | Next.js with React and Tailwind CSS |
|---|---|
| Backend | Next.js Server Actions and REST API routes |
| Database | Turso (SQLite at the edge for projects, screens, and credit tracking) |
| Auth | better-auth |
| Payments | Stripe |
| Other | Vercel AI SDK, Anthropic API, Resend |
Build guide
01Project Scaffolding & Database Schema
Initialize a Next.js project with Tailwind CSS, configure Turso database connectivity, and set up better-auth for user management.
Initialize a new Next.js TypeScript project with Tailwind CSS. Set up Drizzle ORM connected to Turso. Create database tables for users, projects, screens (storing JSON layout AST), and user_credits. Configure better-auth with email/password authentication and a clean login/signup layout. Verify the build runs cleanly with no TypeScript errors.02AI Prompt-to-Layout Pipeline
Implement the core generation engine using the Vercel AI SDK and Anthropic API to convert text prompts into structured mobile UI component trees.
Implement an API route in Next.js that accepts a user prompt and design style (e.g., Glassmorphism, Neo-Brutalism, Soft Clay). Using the Vercel AI SDK and Anthropic Claude Sonnet, prompt the model to return a strict JSON AST representing mobile UI screens (containers, text hierarchy, bento grids, buttons, colors). Validate the output schema using Zod, store the generated screen data in Turso linked to the project, and handle error retries if the JSON is malformed.03Visual Mobile Canvas & Editor
Build an interactive mobile canvas that renders the JSON AST into previewable iOS/Android screens with live text and style editing.
Create a responsive mobile frame canvas component in React that dynamically renders the generated screen JSON AST into preview cards mimicking mobile device dimensions (iPhone/Android frame, status bar, safe areas). Add an inspector sidebar allowing users to select individual components, tweak background colors, border radii, and text content. Ensure local state syncs back to the backend database on save.04Code & Clipboard Exporters
Implement export functionality for React/Tailwind code and clipboard HTML formatting for Figma integration.
Build export modals for the generated screens. Provide a React + Tailwind code generator that converts the screen AST into clean, copy-pasteable JSX components. Additionally, implement a clipboard copy function that serializes selected nodes into HTML/CSS formats compatible with standard clipboard pasting into design tools.05REST API & Agent Skill Endpoint
Expose a secure REST API and agent skill definition allowing external coding agents like Claude Code to programmatically create projects and generate screens.
Build a secure REST API protected by API keys for Pro users. Create endpoints: POST /api/projects to create projects, POST /api/screens/generate to trigger text-to-UI generation programmatically, and GET /api/screens/[id] to fetch screen AST and code. Include credit deduction logic per generation. Write a companion Markdown agent skill instruction file (`SKILL.md`) explaining how an AI coding agent can authenticate and drive these endpoints.06Credit Metering & Polish
Add credit tracking, Stripe billing webhooks, and polish the dashboard UI.
Implement a credit metering middleware that deducts credits from user balance upon screen generation or edit. Set up a Stripe webhook endpoint to handle subscription purchases (Starter and Pro plans) and credit top-ups. Polish the dashboard with a clean sidebar, project selector, and loading skeletons during AI generation.
Cost vs paying for Sleek
What will you build it with?
Starting total with Claude Code$0 one-time
Starting costs (one-time)
- Domain name$12 one-time
- Anthropic API initial credits$20 one-time
Total~$32 one-time
Ongoing costs (monthly)
- Vercel Hobby/Pro & Turso$0-5/mo
- Anthropic API usage~$10-20/mo
Total~$15-25/mo
Paying for Sleek
$49.99/mo (Pro Plan)
Your time to build
25-35 hours
AI tool credits
$20/mo (Claude Pro) + ~$15 API credits
Break-even
1 month of building vs paying
Vibe code Sleek: FAQ
- Can you vibe code Sleek yourself?
- Solid side project — 68/100 vibecodeable. Build a personal subset for yourself, but keep paying if you want the polished Figma clipboard bridge and agent skills. The single biggest catch is engineering the LLM layout AST parser to output clean, valid mobile component trees instead of jumbled divs.
- How long does it take to vibe code Sleek?
- 2-3 weeks part-time — roughly 25-35 hours of hands-on time with an AI coding agent.
- How do you build your own Sleek?
- Scoped to personal use: Next.js with React and Tailwind CSS on the front, Next.js Server Actions and REST API routes behind it, Turso (SQLite at the edge for projects, screens, and credit tracking) for data. Follow the 6-step build guide on this page — each step has a paste-ready prompt for an AI coding agent.
- How do you code your own Sleek without being an expert?
- Use an AI coding tool (Claude Code or Cursor) and work in small steps: scaffold, data model, core screens, then deploy. Realistic effort: 2-3 weeks part-time. The prompts on this page are written so the AI does the heavy lifting.
- How much does it cost to vibe code Sleek instead of paying?
- About ~$32 one-time to start and ~$15-25/mo to run, versus $49.99/mo (Pro Plan) for Sleek. Break-even: 1 month of building vs paying.
- What stack should you use to vibe code Sleek?
- Next.js with React and Tailwind CSS; Next.js Server Actions and REST API routes; Turso (SQLite at the edge for projects, screens, and credit tracking); plus Vercel AI SDK, Anthropic API, Resend.