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Cache font list in Rust via OnceLock, fire preload request from main.ts so the font list is ready before user opens the picker. |
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| .github/workflows | ||
| .vscode | ||
| desktop | ||
| packages | ||
| public | ||
| src | ||
| tests | ||
| .gitignore | ||
| .oxfmtrc.json | ||
| AGENTS.md | ||
| bun.lock | ||
| COMPARISON.md | ||
| components.d.ts | ||
| index.html | ||
| oxlint.json | ||
| package.json | ||
| PLAN.md | ||
| playwright.config.ts | ||
| README.md | ||
| screenshot.png | ||
| tsconfig.json | ||
| tsconfig.node.json | ||
| vite.config.ts | ||
OpenPencil
Open-source, AI-native design editor. Figma alternative built from scratch with full .fig file compatibility.
Status: Active development. Not ready for production use.
Features
- Figma .fig file import — open native Figma files directly
- Figma clipboard — copy/paste between OpenPencil and Figma
- Vector networks — complex boolean shapes and open paths, like Figma
- Auto-layout — constraint-based layout matching Figma behavior
- Components & instances — with live sync, overrides, component sets
- Pen tool — bezier curves with tangent handles
- Inline text editing — multi-line text with system fonts
- Image export — PNG, JPG, WEBP at any scale
- Headless CLI — inspect, search, and render .fig files without a GUI
- Undo/redo — all operations are undoable
- Snap guides — edge and center snapping
- Color picker — HSV, hue/alpha sliders, hex input, gradients
- ~5 MB install, works fully offline — no account, no server, no internet required
Tech Stack
| Layer | Tech |
|---|---|
| UI | Vue 3, VueUse, Reka UI |
| Styling | Tailwind CSS 4 |
| Rendering | Skia (CanvasKit WASM) |
| Layout | Yoga WASM |
| File format | Kiwi binary (vendored) + Zstd + ZIP |
| Color | culori |
| Desktop | Tauri v2 |
| CLI | citty, agentfmt |
| Testing | Playwright (visual regression), bun:test (unit) |
| Tooling | Vite 7, oxlint, oxfmt, typescript-go |
Getting Started
bun install
bun run dev
CLI
Headless .fig file operations — no GUI needed:
bun open-pencil info design.fig # Document stats, node types, fonts
bun open-pencil tree design.fig # Visual node tree
bun open-pencil find design.fig --type TEXT # Search by name or type
bun open-pencil export design.fig # Render to PNG
bun open-pencil export design.fig -f jpg -s 2 -q 90 # JPG at 2x
All commands support --json for machine-readable output.
Scripts
| Command | Description |
|---|---|
bun run dev |
Dev server at http://localhost:1420 |
bun run build |
Production build |
bun run check |
Lint + typecheck |
bun run test |
E2E visual regression |
bun run test:update |
Regenerate screenshot baselines |
bun run test:unit |
Unit tests |
bun run tauri dev |
Desktop app (requires Rust) |
Desktop App
Requires Rust, the Tauri CLI, and platform-specific prerequisites (Tauri v2 guide).
cargo install tauri-cli --version "^2"
bun run tauri dev # Dev mode with hot reload
bun run tauri build # Production build
bun run tauri build --target universal-apple-darwin # macOS universal
Cross-compilation to other platforms requires their respective toolchains or CI (e.g. GitHub Actions).
Project Structure
packages/
core/ @open-pencil/core — engine (scene graph, renderer, layout, codec)
cli/ @open-pencil/cli — headless CLI (info, tree, find, export)
src/
components/ Vue SFCs (canvas, panels, toolbar, color picker)
composables/ Canvas input, keyboard shortcuts, rendering
stores/ Editor state (Vue reactivity)
engine/ Re-export shims from @open-pencil/core
kiwi/ Re-export shims from @open-pencil/core
types.ts Shared types
constants.ts App-specific constants + re-exports from core
desktop/ Tauri v2 (Rust + config)
tests/
e2e/ Playwright visual regression
engine/ Unit tests
License
MIT