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

SynQ
Nugget by automix.ai
Better Lyrics
Unclutter — Modern Reader Mode
Browser FX:
Noisetab
MiniTAP
Listen to chill music from a browser extension.

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 | chromewebstore.google.com |
| 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...
No description of Pill yet.
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
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using ZIP Code API and Pill. For example, how are they different and which one is better?
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Quick access to any productivity tool
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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Upgrade YouTube Music with Stunning, Synced Lyrics!
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