Ideal postcodes
Postio.co.uk
USZipLookup
Zipcodestack
Fetchify
Data8 UK
Geocode.xyz
Postal code lookup API and downloadable country datasets for address validation, checkout, logistics and geocoding workflows.

Simple Client Onboarding and Verification

Website, pricing, platforms and company facts side by side.
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PostalCodes.info
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| Website | postalcodes.info | stackgo.io |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.

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Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.

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When comparing PostalCodes.info and StackGo, you can also consider the following products.

We help businesses improve UX and data quality with a cutting edge address validation service.
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UK address, email, and phone validation APIs. Sub-50ms p95. Pay-per-request, no tiers, no contracts.
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Find any US ZIP code or Canadian postal code instantly. Search by city, address or code - get accurate location, county & population data free.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Fetchify delivers fast, accurate address, email, phone and bank validation tools that help businesses capture clean, verified customer data, reduce failed deliveries and improve checkout experiences worldwide.
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Build Confidence in your data with Data8. We are the UK's Premier Data Solutions Provider for all your data validation needs, Contact us today for more information.
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