Skip to content
<awesome-gh-repos>
vic

hapijs/joi

The most powerful data validation library for JS
Source code at GitHub https://github.com/hapijs/joi
hapijs/joi.json
{
  "createdAt": "2012-09-16T16:38:06Z",
  "defaultBranch": "master",
  "description": "The most powerful data validation library for JS",
  "fullName": "hapijs/joi",
  "homepage": "",
  "language": "JavaScript",
  "name": "joi",
  "pushedAt": "2025-11-19T15:48:42Z",
  "stargazersCount": 21187,
  "topics": [
    "hapi",
    "javascript",
    "schema",
    "validation"
  ],
  "updatedAt": "2025-11-26T17:14:47Z",
  "url": "https://github.com/hapijs/joi"
}

joi

Section titled “joi”

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

Section titled “The most powerful schema description language and data validator for JavaScript.”

Installation

Section titled “Installation”

npm install joi

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

Section titled “Visit the joi.dev Developer Portal for tutorials, documentation, and support”

Useful resources

Section titled “Useful resources”