---
title: Shopify Address Validator - Free, No Signup
description: Paste a shipping address, get instant deliverability and a suggested fix. Free, no signup, runs in your browser.
canonical: https://tacey.app/tools/address-validator
---
# Shopify Address Validator - Free, No Signup

Paste a shipping address. See whether it is deliverable, and what the correction would be.

## The same validator that runs inside Tacey, available to test one address at a time

This is the same address-deliverability check that fires on every order inside Tacey. Paste a shipping address from a problem order or a customer support ticket, get carrier-grade deliverability, formatted-correctly version, AI reasoning on what's wrong, and the suggested fix. Use it to vet edge cases before pushing fixes back into your store.

## Validate one address

1. Paste the country, ZIP / postal code, street address, city, and state. Use the format the customer entered, not the cleaned-up version.
2. Click Validate. The check runs in 1-2 seconds.
3. Read the verdict: deliverable / not deliverable / formatting issue. The result includes confidence score, AI reasoning, and the recommended corrected address if a fix is possible.
4. Compare your input vs the suggested fix side-by-side. Apply the fix to the order in Shopify if needed.

## What you'll catch using this tool

- Apartment numbers in the wrong field (line 1 vs line 2). This is the #1 carrier-correction-fee trigger - the package usually delivers but the carrier charges $25.50 (FedEx) or up to $25 (UPS) for the format mismatch.
- Street suffix mismatches: 'Street' vs 'St', 'Avenue' vs 'Ave', 'Court' vs 'Ct'. Carriers normalize these but bill the merchant for the correction.
- Missing unit numbers in multi-unit buildings. The validator catches when an address resolves to a multi-unit building but no apartment / unit / suite was provided.
- International postal-format mismatches. The validator covers 195 countries with country-specific format rules, including non-Latin script (Japanese, Chinese, Korean, Arabic).

## When to reach for this tool

- **A customer escalation**: Customer says "my address is right" but the package returned. Paste their address - see exactly what's missing.
- **Onboarding due diligence**: Run a sample of recent orders before you install Tacey to see how many would have flagged.
- **Wholesale / B2B addresses**: B2B addresses bypass most checkout autocomplete. Run the validator on suspicious wholesale orders before fulfilling.

## Verdict, confidence, AI reasoning, and the suggested fix

A clear verdict (deliverable / formatting issue / undeliverable), a confidence score 0-100, an AI reasoning narrative explaining what was checked, and the recommended corrected address if a fix exists. Three uses per IP per day on the free tier - install Tacey for unlimited validation on every order automatically.

## Other free tools

- [Address Type Detector](/tools/address-type-detector): PO Box, freight forwarder, commercial or residential, and which carriers actually serve it.
- [Agentic Readiness Audit](/tools/agentic-readiness-audit): The 22 fields an AI shopping agent reads before it will recommend you, scored 0 to 100.
- [App Stack Detector](/tools/shopify-app-stack-detector): Paste any Shopify URL. See every app it runs, across reviews, email, loyalty and 14 more categories.
- [Theme Detector](/tools/shopify-theme-detector): Paste a storefront. Find out which Shopify theme it runs, and which version.
- [Sales Activity Estimator](/tools/shopify-sales-estimator): A directional read on how busy a Shopify store is, from public catalogue data only.
- [Universal Product Lookup](/tools/universal-product-lookup): Paste a product name or URL. See who else sells it across Shopify, and at what price.