Free tools

Free Deep Linking Tools

Debug Universal Links, Android App Links and link previews without an account. Each tool checks the same rules iOS, Android and social apps apply.

Free
No account needed
Results you can share

Pick the question you are trying to answer:

your-link.com/anythingNot opening the app?

iOS
Why won't my link open the app on iPhone?
/.well-known/apple-app-site-association
File found on your server
Lists your iOS app
/product/123 not covered
Apple App Site Association Validator
Check your apple-app-site-association file, see what Apple's CDN serves, and test which URLs open your iOS app.
See where it breaks
Android
Why does my link open the browser on Android?
/.well-known/assetlinks.json
File found on your server
Names com.your.app
Signing key does not match
assetlinks.json Validator
Validate your Digital Asset Links file for Android App Links and confirm what Google's verifier sees.
See where it breaks
iOS and Android
Does my link really open the app on a phone?
Deep Link Tester
Open any deep link, Universal Link or Android intent on a real phone with a tap or a QR code.
Test it on a phone
Social and messaging apps
Why does my shared link have no image or title?
Link Preview Checker
See how a URL will look when shared, and fix missing or broken Open Graph and Twitter Card tags.
See the preview

How it works

Find out where your link breaks.

Step 1
Paste a domain or link
No account, no install. Results get their own URL you can share.
Step 2
We fetch what the phone fetches
The same files and tags iOS, Android and chat apps read.
Step 3
See where it breaks, and the fix
Each step turns green, amber or red, with a plain-language fix where it stops.