Angular is a platform and framework for building client-side applications with HTML, CSS, and JavaScript/TypeScript. It's particularly suited for building single-page applications (SPAs). Angular provides developers with tools and design patterns to build and scale complex applications. It's maintained by Google and a community of individuals and corporations.
TypeScript is a superset of JavaScript developed by Microsoft. It introduces static types, classes, interfaces, and other Object-Oriented Programming (OOP) features to the language. When TypeScript code is compiled, it is translated into plain JavaScript code, making it compatible with any browser. TypeScript enhances the development experience by catching errors early through a robust type system.