Allows only one product in the cart at a time. Clears previous items when a new product is added. For logged-in users only.
As of April 2026, Allow Only 1 Product in Cart is a WordPress product plugin with 500 active installations and a 5/5 rating from 9 reviews. It has been downloaded 5.3K+ times in total. Requires WordPress 4.0+ and PHP 5.6+. Available on WordPress.org since 2019. Top alternative: WCBoost – Products Compare.
This plugin ensures that users can only purchase one product at a time.
When a logged-in user clicks the “Add to Cart” button, any existing cart content is cleared — allowing only the new product to remain.
Perfect for scenarios like bookings, appointments, or exclusive product sales where only one item should be bought per order.
Note: This plugin works only for logged-in users. Guest users are not affected.
| WordPress | 4.0+ requiredTested up to 6.9.4 |
| PHP | 5.6+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.