# @hapi/joi #### The most powerful schema description language and data validator for JavaScript. **joi** is part of the **hapi** ecosystem and was designed to work seamlessly with the [hapi web framework](https://hapi.dev) and its other components (but works great on its own or with other frameworks). If you are using a different web framework and find this module useful, check out [hapi](https://hapi.dev) – they work even better together. ### Visit the [hapi.dev](https://hapi.dev) Developer Portal for tutorials, documentation, and support ## Useful resources - [Documentation and API](https://hapi.dev/family/joi/) - [Versions status](https://hapi.dev/resources/status/#joi) - [Project policies](https://hapi.dev/policies/) - [Free and commercial support options](https://hapi.dev/support/)