Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah

Piar.io
Linkz.ai
Mugshot Bot
Survol
Bitly
Thumber
Link Preview Generator
Customize how your link will appear on social media, without getting your IT team involved

Which is more popular?
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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|---|---|---|
| Website | zip-codes.com | sharekit.io |
| Pricing | — | |
| Company | Startup from the United States · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
ShareKit brings back the ability to edit link previews on Facebook - simply upload an image and enter a title and description, and ShareKit will generate a new link that can then be posted to Facebook with a beautiful preview
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
No analysis of ShareKit yet.
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using ZIP Code API and ShareKit. For example, how are they different and which one is better?
When comparing ZIP Code API and ShareKit, you can also consider the following products.

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Create beautiful custom link previews for all your social media channels in one place
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Automatic rich link previews on hover that keep visitors on your website
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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Automated link preview images for your website. No more fussing with design tools or wading through thousands of stock photos.
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