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opencart 4 extension.

OpenCart 4 extensions explained and built step by step: back-in-stock alerts, review request emails, Stripe payments, webhooks and more.

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opencart 4 extension

10 ARTICLES
Opencart extensions free download · 7 min read

Free Shipping Progress Bar for OpenCart 4: “Spend $12 More for Free Shipping” in the Cart, With Products That Close the Gap (Free Extension)

Raise average order value in OpenCart 4.1 with a free shipping progress bar in the cart page and mini-cart. It reads the Free Shipping…OCT 28, 2026 Opencart extensions free download · 6 min read

AI Alt Text for OpenCart Product Images: Describe Every Photo in Every Language With Claude (Free Extension)

OpenCart 4 uses the product name as the alt text of every product image. This free extension has Claude look at each image and…OCT 26, 2026 Opencart extensions free download · 6 min read

Multi-Language SEO for OpenCart 4: hreflang, x-default, Canonical Tags and Duplicate Content (Free Extension)

OpenCart 4 serves every language at its own URL but tells Google nothing about how they relate. Add hreflang and x-default, fill in missing…OCT 26, 2026 Opencart extensions free download · 6 min read

GA4 Ecommerce Tracking in OpenCart 4: view_item, add_to_cart, begin_checkout and purchase Without Editing Your Theme (Free Extension)

Send Google Analytics 4 ecommerce events from OpenCart 4.1: view_item_list, view_item, add_to_cart, view_cart, begin_checkout and purchase with items, value, tax and shipping. Free extension…OCT 26, 2026 Opencart extensions free download · 7 min read

Webhooks for OpenCart 4: Send New Orders, Status Changes and Customers to Slack, Zapier, n8n or Your ERP (Free Extension)

OpenCart 4 can't notify other systems when an order is placed. This free extension sends signed JSON webhooks (Standard Webhooks format) on order.created, order.status_changed…OCT 26, 2026 Opencart extensions free download · 7 min read

Loyalty in OpenCart 4: Reward Points That Add Themselves, and Wishlist Price-Drop and Back-in-Stock Emails (Free Extension)

Build a simple loyalty program with OpenCart 4's reward points, fix the manual step that stops points being credited, and turn wishlists into sales…OCT 26, 2026 Opencart extensions free download · 7 min read

Bulk Update Prices and Stock in OpenCart 4 with CSV: Export, Edit in Excel, Preview and Import (Free Extension)

Update hundreds of OpenCart 4 prices, quantities and statuses at once from a spreadsheet. Free extension: export to CSV, edit in Excel or Google…OCT 26, 2026 Opencart · 11 min read

Stripe in OpenCart 4: Checkout vs Payment Element, Webhooks and PCI Scope (with a Developer Walkthrough)

How to accept Stripe payments in OpenCart 4.1: hosted Checkout or embedded Payment Element, keeping card data off your server, verifying webhooks, zero-decimal currencies,…OCT 26, 2026 Opencart extensions free download · 10 min read

Back-in-Stock Notifications in OpenCart 4: Let Customers Ask to Be Emailed When a Product Returns (Free Extension)

OpenCart 4 shows "Out Of Stock" and stops there. Add a "Notify me when it's back" form, email waiting customers automatically when stock returns,…OCT 23, 2026 Opencart extensions free download · 10 min read

Automated Review Request Emails in OpenCart 4: Ask for a Review X Days After an Order Is Complete (Free Extension)

Most OpenCart stores have almost no product reviews because nobody asks. Send an automatic review request a few days after each order, with one-click…OCT 23, 2026