AWS Amplify is a development platform provided by Amazon Web Services that simplifies building and deploying web and mobile applications. It offers a set of tools and services that help developers create scalable applications quickly, integrating features like authentication, storage, and APIs without needing extensive backend knowledge. With AWS Amplify, developers can use a variety of frameworks and languages, including React, Angular, and Vue.js. The platform also provides a user-friendly interface for managing app resources and monitoring performance, making it easier for teams to collaborate and deliver high-quality applications efficiently.