zipaddr-jp

84 Quality Score

Active Installs

21/30

With 50,000 active installs, it has solid reach inside the Japanese niche, though it is naturally narrower than globally focused form plugins.

Update Freshness

25/25

The plugin was updated very recently in July 2026, showing the developer is actively keeping it current.

User Rating

15/15

It holds a perfect 100 from 6 reviewers, which is encouraging but based on a small sample size that limits how much weight that score deserves.

Support Health

8/15

Zero support threads have been opened, which means either the plugin works so well no one needs help or there is not enough public activity to gauge response quality.

WP Compatibility

15/15

It requires only WordPress 3.7 and is tested up to 7.0, so it works on an unusually wide range of installs without known conflicts.

Scores higher than 92% of indexed plugins

About

zipaddr-jp is a collaborative tool that automatically inputs addresses from postal codes.

Active Installs 50k+

Rating ★★★★★ 5/5

Last Updated 2026-08-02 1:31am GMT

Requires WordPress 3.7+

Tested Up To 7.0.4

✓ No known vulnerabilities

What It Does

zipaddr-jp automatically fills in Japanese street addresses when a visitor enters their postal code into a form on a WordPress site. It uses a collaborative address database to look up the correct prefecture, city, and street from a 7-digit postcode. The integration works through Ajax, so form fields populate without a page reload.

Who It's For

This plugin is built for Japanese e-commerce stores, registration forms, and checkout pages where customers frequently type their postal code. Site owners serving Japanese users will save shoppers keystrokes and reduce address-entry errors. Small to mid-sized shops in Japan that rely on accurate, fast form completion will see the biggest payoff.

Who Should Skip It

If your site does not target Japanese users or does not collect Japanese postal addresses, this plugin serves no purpose. Developers building bespoke address flows with custom APIs or businesses outside Japan should skip it entirely.

The Bottom Line

zipaddr-jp does one narrow job and does it well for its target market. With 50,000 installs, a perfect rating, and very recent updates, it is a safe choice for any WordPress site collecting Japanese addresses. Anyone outside that niche has no reason to install it.

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