Address Validator checks the shipping address right inside Shopify checkout, suggests a corrected version and applies your delivery rules — so bad addresses never reach your warehouse.
Both work inside Shopify's native checkout — nothing to add to your theme, no custom inputs, no redirects.
Every shipping address is checked against postal data as the buyer completes checkout. Typos, missing units and non-deliverable addresses get flagged with a clear banner and a one-tap fix.
Suggestions appear in Shopify's own address field as the buyer types. Fewer keystrokes, fewer mistakes — and the address arrives already normalized.
Block or warn on PO boxes, military addresses (APO/FPO/DPO), whole countries or specific states and provinces. Rules run on our side and are part of the same single charge per checkout — never billed on top.
US addresses use the USPS-certified database; everything else goes through international postal data covering 240+ countries and territories.
Every banner text is editable and translatable from the admin, so the message matches your brand and your buyers' language.
See what each buyer typed, what we suggested and what they chose — per order, right in your Shopify admin.
Installed in minutes. Nothing changes for buyers who already type a correct address.
Autocomplete offers matching addresses while they type. Picking one fills the native Shopify fields.
The address is checked against postal data and your delivery rules. A correct address passes silently.
If something's off, a banner explains what and offers the corrected version. You decide whether to warn or block checkout.
No subscription, no tiers. You are billed through Shopify only for addresses we actually processed.
$0.04 per checkout
$0.05 per selected address
Anything else — write to support@address-validator.app.
Only if you want it to. For each case — a suggested correction or an address we couldn't verify — you choose whether to show a warning or block the step. If our service is ever unavailable, checkout continues as normal; we never fail closed.
No. The validation banner appears automatically under the delivery address form. For autocomplete, select Address Validator as the autocomplete provider in your checkout settings — one click.
All countries covered by our postal data provider — the US with USPS-certified data, and 240+ other countries and territories through international address data. Addresses in unsupported countries pass through without a charge — unless one of your delivery rules matches them, which counts as that checkout’s check.
Addresses are sent to our postal data provider for verification and kept so you can see them in your order history. Buyer addresses never appear in our logs, and no data is sold or shared with anyone else. Shopify's customer data-request webhooks are supported.
Through your regular Shopify invoice, using Shopify's usage-based billing. You'll see every charge itemised, and you can set a spending cap when you approve the app.
Address Validator