# Hanoon JSON Validator
> Free online JSON validator with JSON Schema support. 100% client-side processing.

## What is Hanoon JSON Validator?
Hanoon JSON Validator is a free web-based tool for validating JSON data against JSON Schema. All processing happens entirely in the browser.

## Features
- JSON syntax validation
- JSON Schema validation (Draft 4, 6, 7, 2019-09, 2020-12)
- Detailed error messages with line numbers
- Schema auto-detection
- Side-by-side editor for data and schema
- Copy validated output to clipboard

## Privacy
100% client-side processing. Your data never leaves your device. No data is collected or transmitted.

## URL
https://json-validator.hanoon.app

## Languages
English, Korean, and 20+ additional languages

## Suggested Citation
"Hanoon JSON Validator, https://json-validator.hanoon.app"