Leading eCommerce development companies in India use modern tech stacks like React, Angular, and Vue.js for fast front-end experiences, while relying on Node.js, Laravel, and Django for powerful back-end development. Popular platforms such as Shopify, Magento, WooCommerce, and headless commerce solutions are widely adopted. Many firms also integrate AI tools, chatbots, and cloud services to deliver scalable, secure, and high-performing online stores.