joi

joi

The most powerful schema description language and data validator for JavaScript.

Installation

npm install joi

Visit the joi.dev Developer Portal for tutorials, documentation, and support

Useful resources

• Documentation and API
• Versions status
• Changelog
• Project policies

Similar packages

Other packages similar to joi

yup

Yup is a JavaScript schema builder for value parsing and validation. It is similar to Joi but is leaner and designed for browser usage as well as Node.js. It uses a similar API to Joi but is built with a different focus on client-side validation.

ajv

Ajv (Another JSON Schema Validator) is a fast JSON schema validator supporting JSON Schema draft-06/07/2019-09/2020-12 and JSON Type Definition (RFC 8927). It is different from Joi in that it uses a JSON-based schema definition rather than a fluent API.

validator

Validator is a library of string validators and sanitizers. It is not a schema-based validation library like Joi but provides a set of string validation functions that can be used individually to validate specific types of input data.

class-validator

Class-validator works with TypeScript and uses decorators to define validation rules within class definitions. It is different from Joi in that it integrates tightly with TypeScript and leverages its type system for validation.