Gatemi Free Shipping Bar

“Add $12.50 more to unlock free shipping.” Nothing nudges an order over
the line like showing shoppers how close they are — and this bar does it
with zero configuration, because it reads the free-shipping rules
your store already has.

• Your store’s rules are the single source of truth. The bar finds
  the Free shipping method (with a minimum order amount) in the shipping
  zone WooCommerce itself matches for the cart — it never re-implements
  zone matching, so it can never disagree with your checkout.
• Honest math. The cart is measured exactly the way WooCommerce’s own
  free-shipping check measures it: discounts subtracted (unless your rule
  ignores them), tax-display aware.
• A congratulations state the moment free shipping unlocks.
• Shows on the cart page and shop pages, each toggleable on one small
  settings screen (WooCommerce → Free Shipping Bar).
• No free-shipping rule? No nag. The bar stays hidden and the
  settings screen explains where a rule is added.
• Lightweight by design: no JavaScript, one small stylesheet, one option.

Looking for more?

The full edition, Gatemi Free Shipping Bar for
WooCommerce,
adds your own wording (with {remaining}, {threshold} and {total}
placeholders), brand colors with a live preview, live refresh without a
page reload, mini-cart and checkout placements, coupon-based
free-shipping rules, and a block + shortcode for manual placement.