| # joi | |
| #### The most powerful schema description language and data validator for JavaScript. | |
| ## Installation | |
| `npm install joi` | |
| ### Visit the [joi.dev](https://joi.dev) Developer Portal for tutorials, documentation, and support | |
| ## Useful resources | |
| - [Documentation and API](https://joi.dev/api/) | |
| - [Versions status](https://joi.dev/resources/status/#joi) | |
| - [Changelog](https://joi.dev/resources/changelog/) | |
| - [Project policies](https://joi.dev/policies/) | |