Yup: Detailed Overview & Metrics

v1.4.0(about 1 month ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 4Monthly npm downloads

Yup is a JavaScript schema builder for value parsing and validation. It allows you to define schemas for objects and validate their shape, types, and properties. Yup provides a simple and intuitive API for creating validation rules, handling complex validation scenarios, and generating error messages. It is lightweight, fast, and widely used for form validation in frontend and backend applications.

Compared to other validation libraries like Joi or Validator.js, Yup stands out for its declarative schema definition and seamless integration with form libraries like Formik. It offers asynchronous validation support, custom validation functions, and schema composition for building complex validation logic.

Alternatives:
joi+
ajv+
zod+
class-validator+
superstruct+
express-validator+
validator+
vuelidate+
formik+
react-hook-form+

Tags: javascriptvalidationschemaform-validationparsing