Pencil.dev

Pencil.dev

Free

IDE-integrated AI design canvas that converts visual designs into pixel-perfect production code using MCP, with Git versioning and Figma import support.

AI CodingAI CodingDeveloperFreelancer
Visit Website ↗

What is Pencil.dev?

Pencil.dev is a Figma-like vector canvas that lives inside your IDE, bridging the historically frustrating gap between design and code. By running as an MCP (Model Context Protocol) server, Pencil lets AI coding assistants like Claude Code and Cursor read your design files directly and generate pixel-perfect React, HTML, and CSS code without exports or handoffs. Design files are stored as JSON-based .pen files that live in your Git repository, enabling branches, merges, commits, and rollbacks of design changes alongside source code. Pencil imports Figma frames with styles intact, supports design system tokens, and generates production-grade component code, currently available free during early access.

Key Features

IDE-integrated CanvasMCP Server IntegrationGit-versioned Design FilesFigma ImportReact Code GenerationHTML and CSS ExportClaude Code CompatibleCursor CompatibleVS Code CompatibleDesign System SupportSticky Notes as PromptsLayer PanelCSS Property EditorInfinite CanvasComponent GenerationOpen File FormatNo Cloud DependencyPixel Perfect OutputMulti-agent SupportText Manipulation

How to Use Pencil.dev

1Visit pencil.dev and download or install the Pencil extension for VS Code or Cursor
2Configure the MCP.json file in your IDE settings to connect Pencil as an MCP server
3Create a new .pen file in your project directory to open the infinite design canvas
4Design your UI components visually using the canvas, layer panel, and property editor
5Optionally copy and paste existing frames from Figma to preserve styles and layout
6Open Claude Code or your AI coding assistant and describe what to build using your Pencil design as context
7The AI reads your .pen file via MCP and generates pixel-perfect production code
8Commit both your .pen design file and generated code to Git for versioned design-to-code history

✅ Best For

  • Frontend developers who want to design and code in the same environment
  • Solo developers handling both design and implementation without context switching
  • Teams using Claude Code or Cursor wanting visual design as AI context
  • Developers who want Git-versioned design files alongside code
  • Projects needing rapid UI iteration without switching between Figma and IDE
  • Design-to-code workflows requiring high fidelity between design intent and production output

❌ Not For

  • Designers not using an IDE-based workflow
  • Teams requiring real-time collaborative multiplayer design editing
  • Projects with complex backend logic needs beyond UI generation
  • Organizations needing enterprise design governance and design token management at scale

Reviews

0/500

No reviews yet. Be the first to review Pencil.dev!

Pricing

Free$0
  • ✓Full access during early access period
  • ✓all features included
  • ✓requires Claude Code subscription from $20/month separately

Prompts to Try

Create a login form with email, password, and remember me checkbox using Tailwind CSS components from my design system

Build a responsive pricing table with three columns matching the layout in my Pencil canvas, output as React with TypeScript

Generate a card component with image, title, description, and CTA button based on the design in design.pen

Use Cases

A solo developer opens Pencil inside Cursor, sketches a SaaS dashboard layout on the canvas, and asks Claude Code to build all components matching the design, getting pixel-perfect React code in minutes
A frontend team imports their Figma design system components into Pencil, commits the .pen file to Git, and uses it as the single source of truth for all UI generation
A freelancer designs a client landing page in Pencil during a meeting and deploys a working prototype before the call ends
An agency manages multiple client design files as Git branches in Pencil, merging design changes alongside code changes in standard pull requests

Alternatives to Pencil.dev

Builder.ioAI Coding

AI frontend engineer that converts Figma designs into production-ready code and lets engineering, design, and content teams ship visuals without handoffs.

Visit Website →
ConvexAI Coding

TypeScript backend platform that keeps your app always in sync, with real-time queries, built-in auth, and AI-optimized code generation for full-stack developers.

Visit Website →
KiroAI Coding

Agentic AI IDE by Amazon with spec-driven development, structured requirements, agent hooks, and CLI support for building production-quality software.

Visit Website →
Venice AIAI Coding

Private, uncensored AI platform for coding, writing, and image generation, with all prompts processed on-device and never stored on servers.

Visit Website →
WindsurfAI Coding

AI-powered code editor with Cascade agent, memory, and MCP support, trusted by 1M+ developers to write 94% of their code with AI assistance.

Visit Website →
CodeDesign AIAI Coding

AI website builder that generates, hosts, and exports full websites from a text prompt with drag-and-drop customization.

Visit Website →
Ninja AIAI Coding

All-in-one AI agent platform combining 25+ models for coding, writing, research, image generation, and workflow automation.

Visit Website →
ReaddyAI Coding

No-code AI website builder that generates professional, responsive websites from a single text prompt in minutes.

Visit Website →
TabnineAI Coding

Enterprise-grade AI code assistant with privacy-first deployment options, supporting 600+ languages and all major IDEs.

Visit Website →

Frequently Asked Questions