JSONUtil.com - Free Online JSON utility to Validate, Fix, Format, Minify, Compare JSON, and Convert JSON to XML

JSON Validator

The JSON Validator helps you quickly check the validity of your JSON data. It is designed for developers working on APIs, configurations, or data handling. Simply paste your JSON code below and click "Validate JSON" to get immediate feedback.

Why Use the JSON Validator?

Save time by catching syntax errors instantly.
Ensure your JSON is compatible with APIs and databases.
Debug issues with clear error messages and fixes.

Examples:

Valid JSON:

                        {
                            "name": "Alice",
                            "age": 25,
                            "isActive": true,
                            "languages": ["English", "Spanish"]
                        }

Invalid JSON:

                        {
                            "name": "Alice",
                            "age": 25,
                            "isActive": true,
                            "languages": ["English", "Spanish",
                        }

The invalid example above has a missing closing bracket for the "languages" array.

JSON Fixer

The JSON Fixer identifies and corrects common issues in malformed JSON strings, making them valid and usable.

Why Use the JSON Fixer?

Automatically identify issues such as missing quotes, single quotes, or trailing commas.
Handle unclosed strings and unmatched braces or brackets.
Interactively review and approve corrections before applying them.
Ensure your JSON is valid for use in APIs, debugging, or data parsing.

Example Test Cases:

Case 1: Missing Closing Braces

Input:

{ "key1": "value1", "key2": "value2"

Output:

                        {
                            "key1": "value1",
                            "key2": "value2"
                        }

Case 2: Unclosed Strings

Input:

{ "key1": "value1", "key2": "value}

Output:

                        {
                            "key1": "value1",
                            "key2": "value"
                        }

Case 3: Single Quotes Instead of Double Quotes

Input:

{ 'key1': 'value1', 'key2': 'value2' }

Output:

                        {
                            "key1": "value1",
                            "key2": "value2"
                        }

Case 4: Trailing Comma

Input:

{ "key1": "value1", "key2": "value2", }

Output:

                        {
                            "key1": "value1",
                            "key2": "value2"
                        }

Case 5: Combination of Issues

Input:

{ 'key1': 'value1', "key2": "value2", "key3": "value}

Output:

                        {
                            "key1": "value1",
                            "key2": "value2",
                            "key3": "value"
                        }

Fixed JSON:

JSON Formatter

The JSON Formatter allows you to convert compact or poorly formatted JSON into a readable, indented structure. This tool is essential for developers working on debugging or understanding complex JSON data structures.

Why Use the JSON Formatter?

Improve readability by formatting JSON with proper indentation.
Quickly identify nested structures or data relationships.
Work efficiently with JSON during debugging or integration.

Example:

Input (Unformatted JSON):

                        {"name":"Alice","age":25,"skills":["JavaScript","Python"],"isActive":true}

Output (Formatted JSON):

                        {
                            "name": "Alice",
                            "age": 25,
                            "skills": [
                                "JavaScript",
                                "Python"
                            ],
                            "isActive": true
                        }

Formatted JSON:

JSON Minifier

The JSON Minifier compresses your JSON by removing unnecessary spaces, line breaks, and indentation. This is especially useful for reducing the size of JSON files for API requests or storage.

Why Use the JSON Minifier?

Reduce JSON size for faster API responses and better performance.
Minify JSON before embedding it into HTML or JavaScript.
Efficiently handle large JSON datasets.

Example:

Input (Formatted JSON):

                        {
                            "name": "Alice",
                            "age": 25,
                            "skills": [
                                "JavaScript",
                                "Python"
                            ],
                            "isActive": true
                        }

Output (Minified JSON):

                       {"name":"Alice","age":25,"skills":["JavaScript","Python"],"isActive":true}

Minified JSON:

JSON to XML Converter

Convert JSON to XML effortlessly with our converter. This tool is ideal for integrating JSON data into systems that require XML formats, such as older APIs or data interchange protocols.

Why Use the JSON to XML Converter?

Easily transform JSON objects into XML format.
Enable compatibility with legacy systems requiring XML.
Simplify workflows involving mixed data formats.

Example:

Input (JSON):

                    {
                        "name": "Alice",
                        "age": 25,
                        "skills": ["JavaScript", "Python"]
                    }

Output (XML):

                        <root>
                            <name>Alice</name>
                            <age>25</age>
                            <skills>
                                <item>JavaScript</item>
                                <item>Python</item>
                            </skills>
                        </root>

XML Output:

JSON Diff Tool

Compare two JSON objects to identify differences. This tool is perfect for debugging, version control, or ensuring consistency in data structures.

Why Use the JSON Diff Tool?

Quickly identify differences between two JSON objects.
Validate changes or updates in JSON data.
Streamline debugging and version control workflows.

Example:

Input JSON 1:

                        {
                            "name": "Alice",
                            "age": 25,
                            "skills": ["JavaScript", "Python"]
                        }

Input JSON 2:

                        {
                            "name": "Alice",
                            "age": 26,
                            "skills": ["JavaScript", "Go"]
                        }

Output (Differences):

                        {
                            "age": {
                                "type": "changed",
                                "from": 25,
                                "to": 26
                            },
                            "skills": {
                                "type": "changed",
                                "from": [
                                    "JavaScript",
                                    "Python"
                                ],
                                "to": [
                                    "JavaScript",
                                    "Go"
                                ]
                            }
                        }

JSON Differences:

About JSONUtil.com

JSONUtil.com was created to provide fast, reliable, and easy-to-use JSON tools for developers and data enthusiasts. Our platform is entirely client-side, ensuring your data remains private and secure.

Whether you're validating, formatting, or converting JSON, our tools are designed to save you time and effort.

If you have feedback or feature requests, feel free to reach out to us at .