connormagyar

This plugin augments WordPress’s link picker so you can insert Add to Cart links without shortcodes or custom blocks.
<ul>
<li>Works in Classic (wpLink modal) and Block Editor (LinkControl popover)</li>
<li>Supports simple and variable products (one entry per in‑stock variation)</li>
<li>Optional same‑origin <code>redirect_to</code> handler after successful add</li>
<li>No theme changes, no template overrides</li>
</ul>

Easy Add-to-Cart Links for WooCommerce

Build valid WooCommerce add-to-cart URLs from the standard Insert/edit link UI. Shows ADD TO CART results for simple and variable products.

Rishi Mehta

This plugin activate add to cart through ajax on varible product. By default woocommerce is not having this feature. Plugin is adding own jquery which is differ from woocommerce default add to cart jquery for simple product.
This plugin also supports sending additional field and other data added by other plugins. It will work with most of product addon and extra field data.
Let me know if you stumble upon any plugin conflict in support forum.

Woocommerce Ajax add to cart for variable products

This plugin activate add to cart through ajax on varible product.

Easy Add-to-Cart Links for WooCommerce vs Woocommerce Ajax add to cart for variable products