WHMCS One Page Checkout

WHMCS One Page Checkout is a WordPress plugin developed by WHMPress that transforms the WHMCS purchasing process into a unified, single-page checkout experience within your WordPress site. Designed for hosting companies, domain registrars, SaaS providers, and digital agencies, this plugin eliminates the friction of traditional multi-step checkout processes, condensing everything into a clean, organized, and highly conversion-optimized interface.

The plugin directly integrates WHMCS cart and order pages into WordPress via the WHMCS API, allowing your customers to select products, configure options, search and register domains, and complete their payment without leaving your site. This not only maintains your brand's visual consistency but also drastically reduces cart abandonment by eliminating unnecessary redirects between systems.

Among its most notable features are the optional top navigation to move between sections, the ability to hide unwanted sections such as products, additional services, add-ons, or promotional codes, and product filtering by specific groups or IDs. It also includes support for domain search, registration, and transfer, AJAX-based cart with real-time updates, and the option to display the cart counter in the WordPress header.

The plugin offers multiple design templates —including styles like Minimal, Ease, Sleek, and Modern— that can be easily customized with native WordPress CSS. Additionally, it allows you to apply promotional codes automatically, change the currency within the site, preselect products and billing cycles, and supports custom customer fields, configurable product options, and new customer registration.

With a fully responsive design that adapts to any device, WHMCS One Page Checkout is the ideal solution for businesses looking to increase their conversion rate, offer a more direct and efficient shopping experience, and keep account and order management centralized in WHMCS while leveraging the full potential of WordPress as a sales platform.