rjsf-team/react-jsonschema-form

react-jsonschema-form is a React component (a reusable building block for web apps built with the React JavaScript framework) that automatically generates web forms from a JSON Schema. JSON Schema is a standard way to describe the structure and rules of data using a simple text format, for example, specifying that a "name" field must be a string or an "age" field must be a number between 0 and 120. Instead of hand-coding each input field, label, and validation rule, you write a JSON Schema that describes what data you want to collect, and the library renders a complete form for you. It handles validation automatically, showing errors when users enter data that does not match the schema. The library supports a wide range of visual styling themes, including Ant Design, Chakra UI, Material UI, and others, so you can match the look and feel of your existing app without redesigning the form from scratch. You would use it when you need to build data-entry forms quickly, especially when the form structure comes from a schema that might change over time, or when you need consistent validation across multiple forms. It is built in TypeScript and targets React web applications.