Android Asset Links Generator
Free assetlinks.json generator. Create Digital Asset Links statements for Android App Links with package names and SHA-256 fingerprints.
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What is Android Asset Links Generator?
This tool builds the assetlinks.json (Digital Asset Links) file that connects your website to your Android app through App Links. Enter package names and SHA-256 certificate fingerprints, optionally enable credential sharing, and copy or download a ready-to-deploy file.
Key Benefits
- No hand-editing fragile JSON syntax
- Live validation of package names and fingerprints
- Supports multiple apps and signing certificates
- Optional get_login_creds relation included
- Instant copy and download, works offline
Common Use Cases
- •Set up Android App Links for a new release
- •Share sign-in credentials between website and app
- •Add a second app or a Play App Signing key
- •Regenerate assetlinks.json after a signing certificate change
How to Generate assetlinks.json
- Get your SHA-256 fingerprint: Run keytool -list -printcert -jarfile your.apk in a terminal, or copy the SHA-256 fingerprint from the Play Console under Release, Setup, App signing.
- Enter package name and fingerprint: Add your app package name, e.g. com.example.app, and paste the SHA-256 fingerprint. A bare 64-character hex string is converted to colon format automatically.
- Enable credential sharing (optional): Turn on the get_login_creds relation if your app should save and fill credentials shared with the website via Credential Manager.
- Copy and deploy: Download assetlinks.json and host it at https://yourdomain.com/.well-known/assetlinks.json served as application/json over HTTPS, then verify with the Play Console App Links checker.
Key Features
- Generates valid assetlinks.json Digital Asset Links statements with live preview
- Supports multiple apps and multiple SHA-256 fingerprints per app
- Automatic conversion of bare 64-hex fingerprints to colon format
- Optional get_login_creds relation for credential sharing
- Format validation with inline error messages
- Runs 100% in the browser - no data leaves your machine
Frequently Asked Questions
What is assetlinks.json?
It is a Digital Asset Links statement list that Android fetches from your website to verify App Links. It declares which Android apps, identified by package name and SHA-256 signing certificate fingerprint, are allowed to open links to your domain.
Where do I host the generated file?
Upload it to https://yourdomain.com/.well-known/assetlinks.json, served as application/json over HTTPS with no redirects. Android will not accept it over HTTP, and each subdomain (including www) needs its own declaration.
Which fingerprint should I use?
Use the SHA-256 fingerprint of the certificate that actually signs the APK - for Play-distributed apps that is usually the Play App Signing key, which you can copy from the Play Console under Release, Setup, App signing.
What does the get_login_creds relation do?
The delegate_permission/common.get_login_creds relation lets your app save and fill credentials (passwords, passkeys) shared with the website, powering sign-in features like Smart Lock for Passwords and Credential Manager.