JSON Formatter & Validator Tool

This free JSON Formatter online helps you format JSON, validate JSON data, and minify JSON instantly. It works as a JSON beautifier, JSON validator, and JSON lint tool, making it perfect for developers working with APIs.

Working with JSON can sometimes feel messy, especially when the data is large or not properly formatted. This JSON Formatter and Validator tool is designed to make your life easier by automatically formatting your JSON and checking for errors at the same time.

Whether you're a developer testing APIs or just someone trying to read JSON data, this tool helps you clean, validate, and understand your JSON in a much more readable way.

✨ What This Tool Can Do

• Automatically format (beautify) JSON for better readability
• Validate JSON and show clear error messages
• Provide a tree view to easily navigate nested data
• Support indentation levels like 2, 3, and 4 spaces
• Upload JSON files and download formatted results
• Work as an API response formatter
• Show JSON in graph view for better debugging
• Save your last JSON data in browser storage
• Allow printing of formatted JSON
• Act as a JSON lint tool to catch syntax issues

💡 Why This Tool is Useful

Around 95% of APIs use JSON to exchange data between client and server. But raw JSON is often hard to read. This tool makes it easy to format, validate, and debug JSON instantly without needing software like Notepad++, Sublime, or VSCode.

🔍 Example

Before formatting:

{"name":"John","age":30,"skills":["PHP","Laravel","JavaScript"],"address":{"city":"Surat","state":"Gujarat"}}

After formatting (Beautified JSON):

{
    "name": "John",
    "age": 30,
    "skills": [
        "PHP",
        "Laravel",
        "JavaScript"
    ],
    "address": {
        "city": "Surat",
        "state": "Gujarat"
    }
}

As you can see, the formatted version is much easier to read and understand.

This tool works like a lightweight alternative to code editors and helps you quickly clean and validate JSON online.

JSON Validator

JSON Validator Online checks the integrity/syntax of the JSON data based on JavaScript Object Notation (JSON) Data Interchange Format Specifications (RFC).

It's super easy to find the error when line numbers are highlighted with an in-detail error description.

Use Screwdriver icon to as JSON Fixer to repair the error.

To validate JSON you just need internet and no need to install any software.

Your JSON Data gets validated in the browser itself.

This JSON Lint tool provides fast and without sign up, user can checks the JSON data's validity.

FAQ