Apple App Site Association Validator

Validate pasted association file JSON structure.

Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.

Apple App Site Association Validator

How to use this tool

  1. Enter your values in the fields above.
  2. Press Generate to see the result.
  3. Use Load sample to try the worked example, Copy result to copy it, or Clear to start again.

Worked example

The sample JSON has an empty apps array and one detail with app ID TEAM12345.com.example.app and a path component, so its structure looks valid.

What this tool does not do / Limits

This validates only the JSON you paste. It does not check a live site, a domain file, or any developer account.

Frequently asked questions

What is checked?

JSON shape, the applinks object, details entries, app ID format and the presence of components or paths.

Does a pass mean links will work?

No. It only checks structure, not live hosting or app configuration.

Related tools

JSON Studio

Format, validate, minify, query and compare JSON in your browser, with precise line-and-column errors.

Live

Regex Tester

Test patterns against sample text with match highlighting, capture groups and a safe one-second timeout.

Live

Security Header and DNS Checker

Check HSTS, CSP and other security headers, TLS details, and DNS/email authentication records (SPF, DKIM, DMARC).

Live