
Mozilla Add-ons
Plugins Addons Extensions
Addoncrop
Chrome Extension Downloader
CRX4Chrome
Chrome Web Store
Browser-extensions.club
Get extensions and themes for the http://alternativeto.net/software/opera browser.

USZipLookup
ZipCheckup
ZIP Code API
Smarty
Geoco.io
AZIPCODE
PostalCodes.app
Use our free ZIP Code Analysis Tool to find city, state, county, population, and timezone details for any U.S. ZIP code. Fast, accurate, and privacy-safe lookup.

Which is more popular?
Based on our record, Opera Add-ons seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | addons.opera.com | uszipcodes.org |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from India · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Opera Add-ons yet.
ZIP Code Analysis Tool is a web-based application that allows users to search any US ZIP code and instantly view detailed location-based data. The tool provides accurate information including city, state, county, latitude, longitude, and population statistics. It is designed for researchers,...
What each product offers, as listed by its team.


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


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


As answered by people managing Opera Add-ons and usZIPCodes.org.
usZIPCodes.org's answer:
Their ability to translate simple postal codes into sophisticated geographic insights for a wide range of business and research applications beyond their original mail delivery purpose.
usZIPCodes.org's answer:
The "story" behind the concept of a "ZIP Code analysis tool" is not about a single specific software product, but rather the evolution of the ZIP Code itself from a simple postal sorting mechanism into a powerful, multifaceted geographic data analysis unit used across many industries.
Share your experience with using Opera Add-ons and usZIPCodes.org. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Opera’s App Store – We’ll be honest, we didn’t know Opera had a mobile store until we started researching for this. It has a bunch of options. However, all of those options default to the Google Play Store anyway....
We have no reviews of usZIPCodes.org yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Test to see if the same thing happen with an extension installed from https://addons.opera.com/en/ or https://chrome.google.com/webstore/category/extensions. Source: over 3 years ago
For extensions, you can't back them up and restore them, so you'll just have to reinstall them from https://chrome.google.com/webstore/category/extensions and https://addons.opera.com/en/. If you bookmark the URL to each extension's... Source: almost 4 years ago
Tracking usZIPCodes.org since Dec 2025.
When comparing Opera Add-ons and usZIPCodes.org, you can also consider the following products.

Download Firefox extensions and themes. They’re like apps for your browser. They can block annoying ads, protect passwords, change browser appearance, and more.
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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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Plugins Addons Extensions is a platform that provides a one-stop-shop for all the latest Chrome extensions that can help you to run your business.
Compare Plugins Addons Extensions to Opera Add-ons or usZIPCodes.org:

Check water quality, product recalls, energy rebates, and safety alerts for any U.S. ZIP code. Free reports powered by EPA and government data.
Compare ZipCheckup to Opera Add-ons or usZIPCodes.org:

Extends the functionality of your web browser
Compare Addoncrop to Opera Add-ons or 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
Compare ZIP Code API to Opera Add-ons or usZIPCodes.org: