https://www.mageefy.com/magento-extensions/magento-2-free-shipping-bar.html
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Magento 2 Free Shipping Bar Encourage your customers to buy more products to avail free shipping on their purchase. This extension allows to create and display free shipping bar to increase average cart value and drive more purchases from customers to avail free shipping.
Key Features :
Admin can easily configure this extension as per their need from the back-end
Display a free shipping bar to reach free shipping cart value
Automates price calculation process to reach free shipping goal
Display success messages when the customer reaches the cart subtotal goal
It auto-updates the recent cart total as well as the remaining amount
Allow admins to put the bar on any page including homepage, category page, search result page, cart page, product page, etc