JSON → XML converter, XML converter → JSON

Online JSON ↔ XML Converter

Convert API payloads between JSON and XML instantly inside your browser.

Direction: JSON → XML XML → JSON

Input (JSON)

Output (XML)

About the JSON ↔ XML Converter

Working with modern web services often requires handling multiple data formats. While modern REST APIs overwhelmingly rely on JSON (JavaScript Object Notation), legacy systems, enterprise integrations, and SOAP web services still depend heavily on XML (eXtensible Markup Language).

This free converter tool provides a fast, lightweight solution to convert data structures dynamically in both directions without installing third-party plugins or sending confidential data to an external server.

How to Use This Tool

1. Select Direction: Choose whether you want to convert JSON → XML or XML → JSON from the dropdown menu.
2. Enter Input: Paste your raw JSON or XML string into the left input editor. You can click "Load Sample" to see how the conversion works.
3. Convert: Click the blue "Convert" button to execute the transformation.
4. Copy Result: Click the "Copy" button above the output box to copy the formatted response directly to your clipboard.

Why QA & API Testers Benefit From This Tool

1. Legacy API Migration Testing

Effortlessly translate legacy XML endpoints into modern JSON schemas when upgrading SOAP services to RESTful architectures.

2. Test Data Generation

Generate matching mock payloads across different data formats quickly without constructing XML trees or JSON objects manually.

3. Faster Debugging

Convert complex nested XML payloads into JSON format to make them easier to read and analyze in tools like Postman or Insomnia.

4. 100% Client-Side Privacy

All parsing happens directly inside your web browser using JavaScript. No payload data is ever uploaded to a backend server.

Key Applications in Software & API Testing

1. REST vs SOAP Payload Comparison

When performing API automation or manual testing using tools like Postman, JMeter, or SoapUI, testers often need to cross-verify data sent from a SOAP upstream service with a RESTful downstream service. Converting payloads into a uniform structure simplifies structural and field-level validation.

2. Data-Driven Framework Setup

Automation frameworks (such as TestNG or PyTest) frequently read test parameters from external files like XML or JSON. Using this utility allows automation engineers to adapt test fixtures and data providers seamlessly across different framework formats.

3. Schema & Validation Inspection

Validating data contracts (such as JSON Schema or XML XSD) requires clear readability of array elements, attributes, and key-value mapping. Converting complex data formats into clean JSON structures helps identify missing nodes or improper types instantly.