JSON Validator

Online JSON Validator and Formatter

The JSON Validator allows you to quickly check whether your JSON data is valid and correctly structured. It is especially useful when working with APIs, configuration files, or exchanging data between services.

Validate, format, and minify JSON

Paste your JSON into the editor and click Validate to detect syntax errors instantly. You can also pretty-print JSON for readability or minify it to reduce file size.

Common JSON errors

• Trailing commas
• Missing quotation marks
• Incorrect nesting of objects or arrays

Related tools: CSV to JSON, YAML to JSON