Jovo - 🗣 Build cross-platform apps for Alexa and Google Home
OpenCart - A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.s
Alexa Skill Kit - Effortless Alexa Skill development with AWS Lambda
PrestaShop - Create your online store with PrestaShop's free shopping cart software. Build an ecommerce website for free and start selling online with hundreds of powerful features.
Voiceflow - Build voice apps in your browser without coding
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.