GraphQL is a language designed for data querying and manipulating. It's similar to SQL, but it allows you to make queries without having to know the database schema. This makes graphql a great tool for building mobile apps or web applications. GraphQL can also be used with frameworks like React and Vue. GraphQL lets you easily access and display data in a variety of formats, including JSON, XML, and CSV. This makes it a great choice for applications that need to store large amounts of data.