
Linktree
Webflow
WiX
SquareSpace
Beacons
Unicorn Platform
Framer
Simple, responsive one-page site creator.
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

Which is more popular?
Based on our record, Carrd seems to be more popular. It has been mentioned 223 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 | carrd.com | 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.

Build one-page sites for pretty much anything. Whether it's a personal profile, a landing page to capture emails, or something a bit more elaborate, Carrd has you covered. Simple, responsive, and yup — totally free.
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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
CARRD.CO - build a landing page in minutes - TUTORIAL
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Carrd and ZIP Code API. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

What sets Carrd apart is its customizability. With Carrd, you can design a professional-looking Link In Bio page or a landing page without needing any coding experience. It provides users with a variety of elements to...
Carrd is more of a versatile, single-page website builder. It supports everything from basic text and image blocks to more advanced elements like forms, widgets, videos, and galleries. Carrd’s rich feature set allows...
#4Carrd✅ Extremely flexible with over 100 design templates. ✅ Suitable for personal sites and complex one-page designs. ✅Affordable premium features. ❌ Steeper learning curve compared to simpler tools. ❌ Lacks...
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Recommendations tracked on public social media and blogs since March 2021.

The free stack: Carrd has a free tier that handles a one-page site fine, or throw plain HTML on any free subdomain you already have access to. For the form, Google Forms is free forever, and Tally's free tier embeds cleanly if you want... - Source: dev.to / 3 months ago
It started as a personal dating profile builder (kind of like a Carrd for dating) but after concerns around privacy, scope creep, and some brutally honest Reddit feedback (quoting, "it's cringe, you should delete it and never mention it... - Source: dev.to / about 1 year ago
Not something I’ve seen recently, but Carrd’s landing page is stuck in my mind as a great example of a landing page. It’s beautiful, to the point, and provides immediate access to a demo, without the need to create an account. You can... - Source: Hacker News / about 2 years ago
Tracking ZIP Code API since May 2026.
When comparing Carrd and ZIP Code API, you can also consider the following products.

Connect your audience to all of your content with just one link.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
Compare Smarty to Carrd or ZIP Code API:

Build dynamic, responsive websites in your browser. Launch with a click. Or export your squeaky-clean code to host wherever you'd like. Discover the professional website builder made for designers.
Compare Webflow to Carrd or ZIP Code API:

Free Zip Code API - Free Postal Code Validation | Zipcodestack
Compare Zipcodestack to Carrd or ZIP Code API:

Create a free website with Wix.com. Customize with Wix' website builder, no coding skills needed. Choose a design, begin customizing and be online today
Compare WiX to Carrd or ZIP Code API:

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to Carrd or ZIP Code API: