Integrations

Connect undevice to your server application to detect devices from each request's headers.

Available adapters

Integration	Import	Features
Express	undevice/express	Middleware writes the result to res.locals.undevice. Supports CDN headers and typed built-in and custom flags.

The Express adapter is included in undevice.

Other frameworks and SSR

The core API accepts headers directly and works with other frameworks without an adapter. See Core API and SSR for examples using Express and Fastify, Astro, and Fetch handlers, plus guidance on hydration.