Typescript is an open-source programming language created by Microsoft. It is a superset of JavaScript and allows developers to write and debug code in an object-oriented way. Typescript is popular among developers due to its strong static typing, which allows for easier refactoring and better bug detection. It also provides great tooling support for popular editors like Visual Studio Code and WebStorm. The language is also designed to be resilient against ever-changing browser APIs, making it easier for developers to keep up with the latest web development trends. With its scalability and flexibility, Typescript is a great choice for any project, whether it is a small website or a complex enterprise application.