
ngrok
zrok
localhost.run
Localtunnel
frp
LocalXpose
LocaltoNet
Public URLs for localhost without downloading any binary
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, Pinggy.io seems to be more popular. It has been mentioned 167 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 | pinggy.io | zip-codes.com |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from India · 1 - 9 employees · 2023 | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

Pinggy stands out as the simplest localhost tunneling solution. With Pinggy, you can effortlessly create HTTP, TCP, UDP, or TLS tunnels to your localhost, enabling instant access to your websites or applications, even behind firewalls and NATs. No need to download anything, no complex server...
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.

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.
Pinggy Demo
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How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Pinggy.io and ZIP Code API.
Pinggy.io's answer
No need to install any binary. One command creates a HTTP / TCP / TLS tunnel to localhost. Works in windows / mac / linux.
Share your experience with using Pinggy.io 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.

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Recommendations tracked on public social media and blogs since March 2021.

This guide follows one example from start to finish. You will receive a GitHub repository webhook in an Express handler on port 3000 through a Pinggy tunnel. Stripe, Slack, and Shopify work the same way, with only the signature details... - Source: dev.to / 2 days ago
As the ecosystem evolves, keep an eye on official documentation from Anthropic and OpenAI. The landscape of AI agents is changing rapidly, and new features are added on a monthly basis. Subscribing to release notes and tracking relevant... - Source: dev.to / 7 days ago
This article was written in partnership with fal and originally published on the Pinggy blog. - Source: dev.to / 8 days ago
Tracking ZIP Code API since May 2026.
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Next-generation sharing platform built on top of OpenZiti
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Instantly share your localhost environment!
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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