Validate and format JSON data with error highlighting and line numbers.
Validate and check XML data for syntax errors and proper structure.
Features of Our Validator Tool
Instant Feedback
Get immediate results for your JSON and XML data validation with precise error messaging.
Error Highlighting
See exactly where errors occur with line numbers and clear visual indicators.
Free and Secure
All processing happens in your browser â no data is sent to or stored on our servers.
Format and Beautify
One-click formatting to make your code readable and properly indented.
How to Use the Validator
Paste Your Data
Copy your JSON or XML data into the respective editor panel. Use the example button if you need sample data.
Click Validate
Press the "Validate" button to check your data for syntax errors and proper structure.
Review Results
Check the results panel to see if your data is valid or if it contains errors. Fix any errors highlighted in the editor.
Format and Export
Use the format button to beautify your code, then copy or download it for your projects.
When to Use This Tool
Our JSON and XML validators are perfect for:
Developers
Testing API payloads, responses, and ensuring data correctness during development.
Web Designers
Validating configuration files, SVG data, and structured content for web applications.
Students
Learning JSON or XML syntax and practicing data structure creation with immediate feedback.
Data Analysts
Checking data exports, API results, and structured data before processing or import.