toolsko

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App Links File Generator (assetlinks.json & Apple AASA)

Create assetlinks.json (Android App Links) and apple-app-site-association (iOS Universal Links) so your website links open your app.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: Upload both files to https://yourdomain.com/.well-known/ (served as JSON over HTTPS, no redirects). Android needs your package name + SHA-256 fingerprint; iOS needs Team ID + bundle ID.

How to use it (step by step)

  1. 1Choose your options: “Android package name”, “Android SHA-256 fingerprint(s) (comma-separated)”, “Apple Team ID (optional)”, “iOS bundle ID (optional)”, “iOS paths to open in the app (comma-separated)”.
  2. 2Press “Generate files”.
  3. 3Copy the result with the Copy button. Press the button again for a fresh result.

Words to know

JSON
A common text format apps use to store and send data, made of names and values in { } brackets.
App Links / Universal Links
Web links that open straight in your app instead of the browser, proven by small files on your website.
Hash / fingerprint (SHA-256)
A short code calculated from a file or text. Change even one letter and the code becomes completely different, so it proves nothing was altered.
Package name / bundle ID
The app’s permanent ID, like com.toolsko.app. Google Play and the App Store use it to tell apps apart; it can never change after publishing.
SHA-1 / SHA-256 fingerprint
A short code that identifies the key used to sign your app. Firebase, Google Sign-In and Maps ask for it to make sure requests come from your real app.

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