OpenPencil review
A capable free editor for Figma-compatible UI work, but not for prototyping or handoff.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
OpenPencil is an open-source design editor for opening, editing, and exporting Figma-compatible .fig files. It is aimed at designers, developers, automation users, and teams seeking a free, local-first alternative to proprietary design tools. The product covers web, Windows, macOS, Linux, iOS, and Android, with a web app and Tauri desktop application included in its positioning.
Its strongest fit is collaborative and programmable UI work. The editor combines vector drawing, text editing, rich-text formatting, auto layout, CSS Grid, reusable components, component sets, variants, and instances. Real-time peer-to-peer collaboration adds live cursors and follow mode. For automation-heavy workflows, the CLI can inspect, export, analyze, and convert design files, while the MCP server and Figma Plugin API extend automation possibilities. Its built-in AI assistant supports multi-provider BYOK connections, including OpenRouter, Anthropic, OpenAI, Google AI, DeepSeek, Z.ai, and MiniMax, alongside tools such as Claude Code, Cursor, and Windsurf.
OpenPencil is less suitable when a game UI workflow depends on interactive prototypes, animation, or developer handoff. The published capabilities include no prototype mode, animation support, or developer handoff, so teams needing those stages should choose a tool with those functions. It is a strong choice for open-source Figma-compatible editing, design systems, collaboration, file conversion, and automation. Teams focused primarily on polished interaction demos or a structured designer-to-developer delivery process should look elsewhere.
OpenPencil pros and cons
- Where it wins
- Native .fig support with vector, text, auto layout, and CSS Grid tools
- Real-time peer-to-peer collaboration with live cursors and follow mode
- CLI, MCP, plugin API, AI, and design-token automation options
- Where it doesn't
- No prototype mode or animation support
- No developer handoff or Dev Mode-style workflow
- The broad feature set may exceed the needs of simple UI projects
OpenPencil fact sheet, pricing and score →
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