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App Links builder: assetlinks.json + intent filter

Make links to your site open straight in your app. Fill in three fields and get both halves of the setup, matched.

Domains (one per line)

Package name Only these paths (optional prefix)

SHA-256 fingerprints (one per line — Play app signing key, plus your own key for sideloaded builds)

Checklist

Serve the JSON with Content-Type: application/json, status 200, no redirects, on every host listed.
Use the Play app signing fingerprint for Play installs; add your own key's fingerprint for sideloaded test builds.
Your converter must support custom intent filters for App Links — ask before you build.

Background: deep links for URL apps.

FAQ

Where do I find my SHA-256 fingerprint?

For Play: Play Console → your app → Setup → App signing. For a keystore: keytool -list -v -keystore my.jks.

Related

/learn/url-app-deep-links/LearnDeep links & App LinksMake links to your website open straight in your URL app with Android App Links: intent filters, assetlinks.json, SHA-256 fingerprints and how to test verification./tools/url-to-package-name/ToolsURL to package nameTurn a website URL into a valid Android package name (application ID) using reverse-domain naming. Validates Java keywords, digits, hyphens and length./learn/url-to-apk-vs-url-to-aab/LearnURL to APK vs URL to AABAPK or AAB from your URL? APK installs directly on a phone and shares anywhere; AAB is required for new Google Play apps. When to use each and how signing differs.