There are 2 repositories under opencart-module topic.
OpenCore - Laravel for OpenCart
Модуль авторизації/реєстрації користувачів через соціальні мережі Google+, Facebook i Instagram. ENG Google+, Facebook, Instagram social networks user authorization / registration module.
OpenCart Starter Module
Reach out to prospects with bailed shopping carts; gain valuable insight to usability and recover lost sales.
Módulo OpenCart integrado a API Gerencianet. Este Plug-in está preparado para integração à API Boletos da Gerencianet, que lhe permite a realização de cobranças por boleto/Bolix, cartão de crédito e muito mais.
ApiShip - модуль доставки для Opencart 3.x, Opencart 2.3 и Opencart 2.1
Several plugins for OpenCart 3
Create unlimited carousels with custom templates for your Opencart store
Módulo Frenet para Opencart
Модуль для добавления авторизации в Opencart 1.5
The Total Order Discount extension is for CMS Opencart 3. It allows to set up a discount or fee depending on the shopping cart total or product quantity.
Increase customer retention and sales by opening a direct line of communication regarding backordered and out of stock products.
Show modal window after product added to cart
Prepare Opencart extension (ocmod)
Simple workaround to get more flexible image size control in Opencart
Opencart module generator using Robo
Admin Filter extension allows filter and sort the product list by many parameters - by categories, manufacturers, SKU, date added. Compatible with OpenCart 3.x versions.
Contact Button is an OpenCart extension that allows to display buttons to quick dial, contact via email, Telegram, Viber, WhatsApp. Compatible with OpenCart 3.x.
Enhanced Manufacturers is an OpenCart extension that allows to display a brand logo and description on the manufacturer's page, as well as to display category menu with only products related to the manufacturer.
Price Range is a simple but powerful OpenCart extension that allows to display the minimum and maximum possible price of a product, based on the product option prices, discounts and specials. Compatible with OpenCart versions 2.2.x-3.x.
Сборник Ocmod-модулей для CMS Opencart, исправляющий типовые проблемы, которые раз за разом приходится решать практически на всех проектах.
UA Модуль призначений для більш інформативного представлення банерів у вигляді слайд-шоу з активними маркерами. ENG The module is designed for more informative presentation of slideshow banners with interactive markers.
Модуль Opencart-Minify-Code призначений для сайтів на базі OpenCart 2.0-2.3 версій. Цей додаток дає можливість мініфікувати кінцевий код (HTML, CSS, JS) сайту опціонально. Використовувати його можуть, як розробники, так і власники інтернет-магазинів з допомогою доданої інструкції. Цей модуль допоможе оптимізувати Ваш сайт в системі Google PageSpeed.
Fondy payment gateway plugin for Opencart3
Tool for connection Sendinblue service to Opencart 2.x or 3.x
Opencart extensions
SEO Redirect is an OpenCart extension that allows to redirect old or broken requests to a new URLs using HTTP 301 response status code. So customer browser will redirect to updated URLs and search engines will notified, that the requested resource have finally moved to a new URL, and they update their links to the resource.
Session Debloater is an extension that prevents bloat of the oc_session table (this is a known OC 3.x issue #7094).
Sorting Manager is an OpenCart extension to manage product sorting methods. Compatible with OpenCart 3.x.
The Total Order Discount+ extension is for OpenCart CMS 3. It allows to create a flexible discount system based on subtotal, total price or quantity of products in the cart.
A simple boilerplate for how to use events in OpenCart 3.x
Módulo para exibição de produtos no formato de carrossel para OpenCart
SEO URL Generator Extension for CMS Opencart v3