Open Pencil icon
Open Pencil icon

Open Pencil

Open-source design editor for vector and interface projects featuring AI-powered generation, .fig and .pen file support, design-to-code export, real-time P2P collaboration, linting, tokens, advanced programmability, Vue SDK, and privacy-friendly operation.

Open Pencil screenshot 1

Cost / License

  • Free
  • Open Source (MIT)

Application type

Platforms

  • Mac
  • Windows
  • Linux
  • Online
  • Homebrew
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Features

Properties

  1.  Privacy focused
  2.  AI-Powered

Features

  1.  No Tracking
  2.  Real time collaboration
  3.  Ad-free
  4.  Support for Layers
  5.  Works Offline
  6.  Create UI Components
  7.  Dark Mode
  8.  Non Destructive Editing
  9.  Auto Layout
  10.  Built-in Color Picker
  11.  UI Design
  12.  Team Collaboration
  13.  Model Context Protocol (MCP) Support
  14.  Pixel Ruler
  15.  Built-in AI Assistant
  16.  Support for Keyboard Shortcuts
  17.  Peer-To-Peer
  18.  Progressive Web App
  19. Figma icon  Import from Figma
  20.  WebRTC

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AlternativeTo Categories

Photos & Graphics, AI Tools & Services, Development, File Sharing, Office & Productivity, Remote Work & Education

GitHub repository

  •  8,726 Stars
  •  870 Forks
  •  87 Open Issues
  •   Updated  
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Open Pencil was added to AlternativeTo by DaFray31 on and this page was last updated . Open Pencil is sometimes referred to as OpenPencil. 

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Ever wondering about free great open source software to start your idea? Here's a list for you to get started. Also mentions several rarely known and newer software as well! Please note that almost none of these alternatives are 1-to-1 replacement with exact some features. Most of these software might have entirely different scope of project. Notable event: Libre Graphics Meeting, annual meeting on Free/Libre and Open Source software for graphics. https://www.libregraphicsmeeting.org Cover image by David Revoy (CC-BY 4.0) https://www.davidrevoy.com/article1061/cmyk-support-in-inkscape-could-be-a-game-changer-for-professional-print-designers
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What is Open Pencil?

OpenPencil is an open-source design editor that can open .fig and .pen files. It has built-in AI functionality and comes as a programmable toolkit with a Vue SDK for creating custom editors. The software can read and write Figma files, open Pencil documents, and copy & paste nodes across apps. Its AI toolset of over 90 tools can create and modify nodes based on user instructions. It connects to various AI endpoints such as OpenRouter, Anthropic, OpenAI, Google AI, Z.ai, and MiniMax.

OpenPencil is fully programmable with a Command Line Interface, XPath queries, and a Figma Plugin API. It includes an MCP server for AI agents and desktop agent integrations for Claude Code, Codex, and Gemini CLI. It allows users to inspect documents, convert between formats, analyze design elements, and extract design tokens. It also supports design-to-code export for JSX/Tailwind, token outputs, and component-oriented code workflows.

OpenPencil supports real-time collaboration via P2P connections through WebRTC, eliminating the need for a server or account. It includes auto layout & CSS Grid features via Yoga Web Assembly, with gap, padding, alignment, and track sizing. It's a lightweight desktop application compatible with macOS, Windows, and Linux, and can also run in a browser as a PWA.