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

BTT Remote
Rectangle
Homerow
SteerMouse
SharpKeys
Swish
Accelerator Keys
Karabiner, previously called KeyRemap4MacBook, is a very powerful keyboard remapper for Mac OS X.

Which is more popular?
Based on our record, Karabiner seems to be more popular. It has been mentioned 277 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 | zip-codes.com | karabiner-elements.pqrs.org |
| Pricing | — | |
| Company | Startup from the United States · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

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...
No description of Karabiner yet.
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
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REVIEW: Should you play the Vetterli 71 Karabiner? [Hunt Gun Review #1]
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How often each product is chosen within a category, 0–100% relative to the other.

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

Tracking ZIP Code API since May 2026.
As a both old Linux and now decade user of MacOS, after I got used to no middle-click paste and no focus-follows-mouse: 1. Keyboard shortcuts are Emacs, Ctrl-A: start of line, E: end of line, K: kill selected or to end of line, Y to... - Source: Hacker News / 6 months ago
I've always setup my macbooks with a custom json config using https://karabiner-elements.pqrs.org/ to avoid the dock, but couldnt convince any friends to give it a try since its high effort, I guess so I hacked together... - Source: Hacker News / 7 months ago
I've had success in the past in customizing macOS key bindings using Karabiner: https://karabiner-elements.pqrs.org/. - Source: Hacker News / 8 months ago
When comparing ZIP Code API and Karabiner, 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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A remote control for you Mac, using your iPhone or iPad
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Window management app based on Spectacle, written in Swift.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to ZIP Code API or Karabiner:
