react
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react
React is a JavaScript library for building user interfaces with declarative, component-based, and cross-platform design.
lanview-cli
LanView CLI is a zero-config Node.js tool that lets developers instantly preview full-stack web applications on mobile devices over a local LAN by auto-discovering the host IP, running a proxy gateway, and generating a scannable QR code.
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Last updated
2026-07-23
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FR-AI / ANALYSISWhy it is worth attention
It eliminates the need for external tunnels like ngrok, manual IP entry, and broken localhost references on mobile, all while keeping data completely offline and supporting WebSocket HMR for live reloads.
Who it is for
- Full-stack developers testing on physical mobile devices
- Frontend developers needing to verify responsive design and API integration on mobile
- Developers working in offline or air-gapped environments
- Teams wanting a simple, no-cloud solution for quick mobile demos
Use cases
- Preview a Vite/Next.js frontend with an Express backend on a phone without code changes
- Serve a static site or SPA build with live reload for mobile testing
- Test WebSocket-based features (like real-time updates) on a mobile device
- Provide a quick demo of a local web app to colleagues or clients via QR code
Strengths
- Zero cloud dependency: 100% private, offline, no data limits or accounts
- Relative-path routing eliminates CORS issues and the need to modify environment variables
- Works with any framework stack (React, Vue, Django, etc.) and supports WebSocket HMR
- Auto-discovers local IP and generates a QR code for instant mobile access
Considerations
- On Linux, recursive file watching for --static mode only monitors the top-level directory (subdirectory changes are not detected)
- Relies on being connected to the same local network; not suitable for testing over the internet
- Requires Node.js to be installed on the developer's machine
README quick start
Installation
Description
Zero-config CLI to instantly preview full-stack web apps on your mobile device over LAN.
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