OpenPencil at a glance
Checked 15 Oct 2026OpenPencil (v0.16.0, 14 Oct 2026; repo started Feb 2026) is a Figma-style UI design editor that opens and saves native .fig files. It has components and variants, flex and grid auto layout, P2P real-time collaboration without a server, JSX/Tailwind export, a CLI and an MCP server. It ships as a ~15 MB Tauri desktop app and a browser PWA. MIT. AI chat and image vectorisation need your own provider keys. The README calls it usable with rough edges. No whiteboard. Hardware needs are not documented beyond OS versions.
RepoQuarry. “OpenPencil.” Checked 15 Oct 2026. https://repoquarry.dev/projects/open-pencilHow much of Figma does it replace?
2 of 4 jobs. Opens .fig files and covers core UI design; young project, prototyping not documented.
For clickable prototypes and user flows, whiteboarding (FigJam), see other Figma alternatives. You may also need to build an interface, an API server and hosting yourself.
How much of Sketch does it replace?
3 of 4 jobs. Interface design, code export and WebRTC collaboration cover part of design teamwork; it is evolving and does not reproduce Sketch prototypes or its plugin ecosystem.
For interactive prototypes, see other Sketch alternatives. You may also need to build an interface, an API server and hosting yourself.
Facts, with sources
Every answer links to where we found it. We read the documentation; we did not install it.
~15 MB desktop app — Tauri v2 for macOS, Windows, Linux. Also runs in the browser as a PWAgithub.com · open-pencil#what-it-does ↗ 1d ago
Connect OpenRouter, Anthropic, OpenAI, Google AI, DeepSeek, Z.ai, MiniMax, or compatible endpointsgithub.com · open-pencil#what-it-does ↗ 1d ago
Requires macOS 13 or later with current Safari updates, Windows 10 or later, or Linux with WebKitGTK 2.40+github.com · open-pencil#readme ↗ 1d ago
brew install --cask openpencilgithub.com · open-pencil#installation ↗ 1d ago