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

I2P
Freenet
Yggdrasil
Seald
Tor Browser
Spike
Keybase Chat
ZeroNet. Open, free and uncensorable websites, using Bitcoin cryptography and BitTorrent network. Download for Windows 9. 6MB · Unpack · Run ZeroNet. exe.

Which is more popular?
Based on our record, ZeroNet seems to be more popular. It has been mentioned 66 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 | zeronet.io |
| 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 ZeroNet 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
ZeroNet is recommended for privacy enthusiasts, developers interested in decentralized technology, individuals seeking censorship resistance, and users in regions with restrictive internet policies. It’s also appealing to those who want to experiment with or support innovative peer-to-peer content distribution.
Walkthroughs and reviews on video.
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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 ZeroNet. 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.
Our views on the project are incompatible. I consider it harmful to the community to: - advertise fork as official continuation (the worst parts of this were eventually removed, but the project's website still completely mimics official... Source: over 3 years ago
Sure! Here are the domain links to the decentralized alternatives I mentioned: 1 Steemit: https://steemit.com/ 2 Mastodon: https://joinmastodon.org/ 3 Scuttlebutt: https://www.scuttlebutt.nz/ 4 ZeroNet:... Source: over 3 years ago
Https://zeronet.io/ (https://zeronet.io/) is 100% censorship proof. How come? Cause it is not centralized, It is 100% decentralized. Source: over 3 years ago
When comparing ZIP Code API and ZeroNet, 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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The I2P network provides strong privacy protections for communication over the Internet.
Compare I2P to ZIP Code API or ZeroNet:

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

Mae-enjoy mo na ang LIBRENG INTERNET ACCESS mula sa freenet! Ang libreng net na bet! freenet is an app where you can access the internet for free. Get 24/7 free access to our partner apps and sites. FREE INTERNET!
Compare Freenet to ZIP Code API or ZeroNet:

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

A proof-of-concept scalable IPv6 meshnet, featuring end-to-end encryption, a unique spanning tree...
Compare Yggdrasil to ZIP Code API or ZeroNet: