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BigCommerce is a SaaS platform leading a new era of ecommerce. BigCommerce provides services to companies looking to sell physical and digital products online. Out of the box, BigCommerce is filled with features designed to help you jumpstart your e-commerce site, without having to build your own store. BigCommerce integrates with popular third-party allowing you to unify your customer experience and technical stack.

Reaction Commerce is an open-source, headless, API-first, and modular commerce stack made for ambitious brands and retailers. Reaction’s service-based architecture is built to deliver flexibility and freedom at scale.

Drupal Commerce is a free and open-source eCommerce module for Drupal. With Drupal Commerce, people can start selling products from their Drupal-powered websites by simply installing and configuring the module. Drupal Commerce provides extra extensions that can be used to further improve and extend on the features of the module.

Elasticsearch is an open-source, highly scalable search and analytics engine written in Java. The engine is built ontop of Apache Lucene Library and has an advanced distributed model and consistent API interface. Elasticsearch allows you to store, search, and analyze huge volumes of data quickly and in near real-time with answers provided in milliseconds. Making it perfect for building full text search, analytics store, auto completer, spell checker, and alerting engines.

Amazon CloudSearch is a managed service in the AWS Cloud that makes it simple and cost-effective to set up, manage, and scale a search solution for your website or application. The service is part of the Amazon Web Services (AWS) offering and supports over 34 languages and popular search features such as highlighting, autocomplete, and geospatial search.

Azure Cognitive Search is cloud-based search service formerly known as Microsoft Azure Search. Azure Cognitive Search uses Microsoft Bing's natural language stack, used by the search engine for more than a decade, to power AI services across vision, language, and speech. With Azure Cognitive Search, you can spend more time building your product than maintaining complex search infrastructure.