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Invision
Axure
UXpin
Proto.io
Fluid UI
Zeplin
The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project
Smarty
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Melissa Data Quality
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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

Which is more popular?
Based on our record, Moqups seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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| Website | moqups.com | zip-codes.com |
| Pricing | — | |
| Company | Startup from Romania | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Moqups yet.
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...
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External articles and on-site reviews we used to compare the two products.

Moqups is another cloud-based best Figmaopen-source alternative used to create diagrams, prototypes, and wireframes. It offers a simple interface along with a variety of features designed specifically for teams,...
Moqups offers an impressive library of Icon Sets, widgets, and smart shapes to use on your website. Use diagram extenders and connectors to come up with diagrams and flowcharts. There are also hundreds of font options...
Moqups is another online application for building mockups, wireframes, and prototypes of UI designs. From diagrams to full-fledged and interactive prototypes, you can get it all done on this web-based app. The strong...
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Recommendations tracked on public social media and blogs since March 2021.

We need to determine the look and functionality of each view in the app. One of the best approaches is to draw each view of the app either using a mockup tool or on paper, this will give you a good idea of what information and data... - Source: dev.to / over 1 year ago
Moqups: Simple tool for creating wireframes and mockups. - Source: dev.to / almost 2 years ago
Functions edit, add, remove post are for authorized persons (of course), that's why you have to make a new page with its layout by using Moqups, for example. - Source: dev.to / over 5 years ago
Tracking ZIP Code API since May 2026.
When comparing Moqups and ZIP Code API, you can also consider the following products.

Balsamiq. Rapid, effective and fun wireframing software.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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The most powerful way to plan, prototype and hand off to developers, all without code. Download a free trial and see why professionals choose Axure RP 9.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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