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

Canny.io
Nolt.io
Upvoty
Frill
UserVoice
productboard
Fider
The smartest way to manage feedback from your customers
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 | feedbear.com |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from the United States · 2026 | Startup from Slovakia · 1 - 9 employees · 2018 |
| 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...
FeedBear helps you make informed product decisions and keep users in the loop. Feedback boards allow you to collect feedback from your customers in one, central place. Roadmap fills up automatically as you make progress. Changelog allows you to make bigger announcements in a beautiful way. Check...
What each product offers, as listed by its team.

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.

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Gone are the days of disjointed feedback siloed into emails, support calls, and sales requests. With FeedBear, all your customer feedback is conveniently stored in one space.
Feedbear is a user-friendly feedback management solution that streamlines the process of collecting suggestions, showcasing your product roadmap, and keeping users informed about updates. With its straightforward...
When comparing ZIP Code API and FeedBear, 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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Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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A fast & beautiful way to collect user feedback
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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