純粋な Rust で再構築されたオープンソースの UI デザイン＆プロトタイプ。
オートレイアウト（Fill＆Hug）、コンポーネントバリアント、テーマ変数モード、インタラクティブプロトタイプを備えた Web/モバイル UI 設計。月額シート課金は一切不要。
Engineered for UI/UX Designers and Product Teams
Hug, Fill & Responsive Flex
Build flexible component trees that automatically adapt as copy changes. Supports nested auto layout, wrap flow, min/max dimensions, and absolute positioning.
Variables & Multi-Theme Modes
Define colors, spacing, and numbers as variables. Switch between Light Mode, Dark Mode, and brand themes across entire design systems in a single click.
Interactive Variants & Slots
Create master components with variant properties, boolean flags, and nested content overrides. Fast, deterministic inheritance without detached layer headaches.
120 FPS GPU Infinite Canvas
Powered by pure Rust and wgpu. Pan and zoom through 200+ mobile artboards without browser tab crashes, WebGL context lost errors, or spinning beachballs.
Your Designs Stay On Your Mac/PC
No company trade secrets uploaded to third-party clouds. Store design files as clean, diffable JSON or `.figcraft` packages directly in your Git repository.
MCP & Code Generation
Integrate with Cursor and Claude Desktop over Model Context Protocol (MCP) to turn UI wireframes directly into React, Tailwind, and Leptos code automatically.
FigCraft vs. Figma
| Metric | FigCraft (Pure Rust) | Figma |
|---|---|---|
| Cost & Licensing | Free forever (Open Source MIT/Apache) | $12 - $75 / editor / month ($144 - $900/yr) |
| File Privacy & Storage | 100% Local JSON/.figcraft on your disk | Forced proprietary cloud storage |
| Auto Layout & Variables | Full Fill/Hug & Theme variable modes | Advanced tokens locked to Enterprise |
| Engine & Performance | Pure Rust wgpu native 120 FPS | Electron / Chromium browser memory limit |
| Offline Capability | Works 100% offline without internet | Requires active connection & cloud handshake |
| AI & Agent Control | Native Model Context Protocol (MCP) | Closed API with rate limits & paywalls |
Direct Release Packages for All Platforms
Direct Cloudflare R2 binary distribution with 1-year immutable caching and GitHub fallback.
macOS Universal
Apple Silicon (M1/M2/M3/M4) & Intel 64-bit.
Windows 64-bit MSI
Standard Windows 10 & 11 installer package.
Portable ZIP (No Install)
Zero admin rights needed. Unzip and run.
Windows on ARM
Native build for Surface & Copilot+ PCs.