cross-window

Zero-dependency screen color picker for Electron. Fullscreen overlay with pixel-grid magnifier, scroll-to-zoom, and hex color output.

Drive a second monitor from your web app. Click in one window, change what's shown in another — no server, no Electron. ~10 kB, zero dependencies.

Promise-based iframe communication for TypeScript. A one-time postMessage handshake hands the iframe a private MessageChannel port; then send() / reply.accept() / reply.decline() over that MessagePort, with timeouts, heartbeat and auto-reconnect. Cross-origin, zero dependencies.