Free tool
Deep links debugger
Paste any URL to inspect its iOS Universal Links and Android App Links configuration. See which app would open it, and why.
Need a hosted deep linking setup? Create a free account to host apple-app-site-association and assetlinks.json on your branded domain.
Developer? Read our deep linking guide to learn how universal links work end to end.
Debugging...
Paste a full URL above to inspect its deep links configuration
No apple-app-site-association file is published for this domain. iOS will not open this URL in any app via Universal Links.
The apple-app-site-association file was found but contains no applinks.details entries.
No assetlinks.json file is published for this domain. Android will not open this URL in any app via App Links.
assetlinks.json was found but contains no Android app statements that handle URLs for this domain.
Android App Links assetlinks.json doesn't define path filters — those live in each app's AndroidManifest intent-filter, which we can't fetch. If a statement is present, the listed apps may handle this domain.
Frequently asked questions
Deep links are URLs that open content directly inside a mobile app instead of a web browser. When configured correctly with iOS Universal Links and Android App Links, tapping a regular https link launches the matching app and jumps straight to the right screen.
iOS reads a file at https://yourdomain/.well-known/apple-app-site-association. It lists which apps are allowed to open URLs on your domain and which paths each app handles. When a user taps a link, iOS checks this file and opens the matching app — falling back to Safari if no rule matches or if the app isn't installed.
Android reads a file at https://yourdomain/.well-known/assetlinks.json. It declares which Android apps (by package name and signing certificate fingerprint) are verified to handle URLs for your domain. Each app's AndroidManifest defines exactly which path patterns it accepts.
Yes, this tool is completely free with no sign-up required. You can debug as many URLs as you need.