Free App Deep Link Generator

What Is an App Deep Link?

A deep link is a URL that opens a specific location inside a native mobile app rather than navigating to a web page. Deep links use custom URI schemes (like twitter://, spotify://, or myapp://profile/123) that the mobile operating system recognizes and routes to the registered app.

However, publishing a raw custom URI scheme on a web page is unreliable: if the user does not have your app installed, the browser shows an ugly "Cannot open page" error. You also cannot use a single app URI scheme to handle both iOS and Android, since users come from both platforms.

How the Smart Router Snippet Works

This tool generates a "deferred deep link" routing script. Here is what happens when a visitor lands on the page containing this snippet:

1. The script detects the user's device via the navigator.userAgent string.
2. If on iOS or Android and an app scheme is provided, it immediately attempts window.location.href = appScheme to open the native app.
3. Simultaneously, a 1.5-second background timer starts as a fallback.
4. If the app opens successfully, the browser tab goes hidden - the script detects the visibilitychange event and clears the timer. No redirect happens.
5. If the app is not installed, the timeout fires and redirects the user to the correct App Store (iOS → Apple App Store, Android → Google Play) or web fallback URL.
6. Desktop users are sent directly to the web fallback without attempting the app scheme.

Best Use Cases for Deep Link Routing

• Email Campaigns: Send "Open in App" links in email that route to the correct store if the app is not installed.
• SMS and Push Marketing: Re-engage lapsed users with a click that opens a specific in-app screen (product page, promo, user profile).
• QR Code App Downloads: Print a single QR code that routes iOS users to the App Store and Android users to Google Play automatically.
• Web-to-App Conversion: Convert web visitors to app users by offering a smart "Download Our App" link that routes seamlessly.