OpenPencil
OpenPencil is a vector design tool that turns text prompts into UI on a canvas, with AI agent teams working in parallel for designers and developers.
What it is good for
- Turning a written description into a UI layout
- Designing interfaces from a terminal with an AI agent
- Keeping design files in Git as readable code
- Exporting one design to React, Flutter, or SwiftUI
At a glance
- Who it is for
- Setup
- Install a desktop app or browser extension
Level 3 of 5. Download and install it like any other app or extension.
- Cost
- Free and open source
- Type
- Agent app
- Tasks
- Works with
- Claude Code, Codex, OpenCode, Kiro, Copilot CLI, Figma
Momentum
- Rank this week
- Not ranked yet
- Best rank
- None yet
- GitHub stars
- 7,018
GitHub numbers as of Nov 2, 2026. Updated weekly.
Official links
Setup steps are on the official pages. We do not repeat them here, since they change.
Questions
- Is OpenPencil free?
- Yes. It is free and open source (MIT license).
- Do I need to know how to code to use OpenPencil?
- No. Download and install it like any other app or extension.
- What does OpenPencil work with?
- According to its own documentation, it works with Claude Code, Codex, OpenCode, Kiro, Copilot CLI, and Figma.
- What is OpenPencil good for?
- Turning a written description into a UI layout, designing interfaces from a terminal with an AI agent, keeping design files in Git as readable code, and exporting one design to React, Flutter, or SwiftUI.
Similar agents
- design-extract
design-extract is a command-line tool that reads a website's design system and exports tokens and code for designers and developers building matching interfaces.
- stitch-skills
Stitch-skills is a library of skill add-ons that teach coding agents to turn Google Stitch designs into code, design systems, and assets for designers and developers.
- Open Design
Open Design is a local-first, open source design workspace where teams and AI coding agents build prototypes, slides, images, and videos together.
- Impeccable
Impeccable is a set of design commands for coding agents that steers, reviews, and polishes interfaces to avoid generic AI-looking design.
- AI Website Cloner Template
AI Website Cloner Template is a skill that recreates an existing website as a Next.js app for people who want a copy of a site's design and layout.
- Skills
Skills is a collection of agent skill folders that teaches Codex, Claude, and Cursor how to build landing pages, 3D scenes, and UI prompts for designers and builders.