Eli5 / Kishan Chamman

NOTE: This plugin depends on the LocatieServer API from PDOK: https://www.pdok.nl/nl/producten/pdok-locatieserver 
This API enables the plugin to find and validate postcodes and find the corresponding address and city name for The Netherlands.
WooCommerce Postcode Validator lets you validate Dutch postcodes and auto-fill the address and city for the filled in postcode. This is achieved by using the BAG / LocatieServer API.
<h4>Main features</h4>
<ul>
<li>Validate the filled in postal code for Dutch orders, and auto-fill the street name and city.</li>
</ul>

WooCommerce Postcode Validator

WooCommerce Postcode Validator lets you validate Dutch postcodes and auto-fill the address and city for the filled in postcode.

CodeBrain BV

Are you using WooCommerce for WordPress and want to have valid customer addresses to send your products to? Look no further!
Features
<ul>
<li>Easy to use</li>
<li>Validate addresses with a postcode database (i.e. PostcodeNL, PostcodeAPI, Pro6PP or Spikkl)</li>
<li>Support for addresses in The Netherlands</li>
<li>Configurable plug-in to suit your needs</li>
</ul>

WooCommerce Postcode Validator vs Postcode Checkout – Postcode Validation