JSON Validator

Developer Tool

Validate, format, minify, and inspect JSON instantly with a simple online developer workspace.

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JSON Workspace

Edit your JSON in the editor below

input.json

JSON · UTF-8

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Everything you need to work with JSON

A lightweight workspace for validating and formatting JSON data while you develop.

Instant validation

Check JSON syntax as you type and identify parsing errors quickly.

Readable formatting

Prettify nested objects and arrays with consistent indentation.

JSON minification

Remove unnecessary whitespace to create compact JSON output.

What is a JSON Validator?

A JSON validator checks whether data follows JavaScript Object Notation (JSON) syntax. Use it to inspect API responses, configuration files, application data, and nested objects before integrating them into your project.

How to use this JSON Validator

Paste your JSON into the editor.
Review the live validation status.
Use Prettify to format or Minify to compress.
Copy the resulting JSON for your application.

Is my JSON sent to a server?

JSON parsing and formatting happen in your browser. This page does not need a backend API for these operations. Avoid sharing sensitive information in any online tool if you cannot trust the surrounding application or browser environment.