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Next.js
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Cybernetically enhanced web apps
Smarty
Zipcodestack
PostalDataPI
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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, Svelte seems to be more popular. It has been mentioned 402 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 | svelte.dev | zip-codes.com |
| Pricing | — | |
| Company | Startup from the United States | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

We recommend LibHunt Svelte for discovery and comparisons of trending Svelte projects.
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.

SvelteJS is a modern JavaScript framework that is useful for building static web apps that are fast, lean, and fun. You can use Svelte to build single, reusable components and large or even small-scale projects....
This web development framework can help you perform the easiest tasks to develop the interface components that users can interact with within their browsers, such as the comment section. Moreover, it has SvelteKit to...
Cruise into the Svelte ecosystem with Sapper, a framework that takes all the brilliance of Svelte and dials it up for app building. It’s like Svelte’s outgoing cousin, optimizing for an even smoother ride from...
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Recommendations tracked on public social media and blogs since March 2021.

Add checkLinks=10 and it also requests up to 10 links from the page (internal first) and follows their redirects. For https://svelte.dev/ (1.55 s, score 88 / B):. - Source: dev.to / about 1 month ago
As described in the first article in this series, this work is inspired mainly by Solid's fine-grained reactivity and Svelte's compiler-based approach. - Source: dev.to / about 1 month ago
Site: server-rendered Astro, with a few Svelte islands only where interactivity is needed (publishing form, like button). Everything else is plain HTML; the home page weighs about 16 KB. - Source: dev.to / about 1 month ago
Tracking ZIP Code API since May 2026.
When comparing Svelte and ZIP Code API, 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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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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A small framework for server-rendered universal JavaScript apps
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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