> For the complete documentation index, see [llms.txt](https://manoel-fernandes.gitbook.io/validate/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manoel-fernandes.gitbook.io/validate/index.md).
# Introduction
**Validate** is a lightweight and minimalist JavaScript library designed to validate primitive data types and values.\
It was originally created to solve a personal need for safer input validation in JavaScript — especially in dynamic environments where type coercion and loose typing can lead to bugs or unexpected behavior.
Validate helps ensure that values from external or internal sources match the expected type or condition **before** being used in your application logic.
#### Why use Validate?
JavaScript is a dynamically typed language, and while that brings flexibility, it also introduces risk.\
**Validate** gives you a simple way to add strong runtime validation without pulling in large or complex libraries.
It's perfect for:
* Validating API inputs and external data
* Type-checking user input in frontend apps
* Preventing invalid logic caused by unexpected types or values
* Keeping code safe and readable in both Node and browser environments
#### Core functionality
Validate is a lightweight JavaScript library that offers robust features for type and value validation, configurable silent mode support, and built-in utilities for error logging and inspection. It also includes a dedicated type identification method that works differently from the native `typeof`, returning more descriptive results for certain values.
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