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Anchor CMS
Textpattern
Flextype
ApostropheCMS
Microweber
Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Smarty
Zipcodestack
PostalDataPI
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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

Which is more popular?
Based on our record, Sitecake 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 | sitecake.com | zip-codes.com |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Sitecake 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...
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
Sitecake is recommended for small businesses, freelancers, personal website owners, and anyone in need of basic website management without the need for in-depth tech knowledge.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Editing a Website with Sitecake CMS
No ZIP Code API videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Sitecake and ZIP Code API. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Use something like this? CMS that generates static html? https://sitecake.com/. - Source: Hacker News / over 3 years ago
I think that user experience of website builders with wysiwyg and drag and drop UX won over time. Then, as time passed by, website builders become bloated and complex. Once again you needed a professional to maintain your site in site... - Source: Hacker News / over 4 years ago
Https://sitecake.com/ works with simple html and PHP sites.... Veeeerrrry simple for client edits. Source: almost 5 years ago
Tracking ZIP Code API since May 2026.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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