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DATA FORMATTING HUB

JSON Formatter & Validator

Clean, format, and validate your JSON data. Essential for debugging API logs and configuration files.

Raw JSON Input
Formatted Result

Understanding JSON Standards

JSON (JavaScript Object Notation) is the language of the modern web. For testers, ensuring valid syntax is the first step in API troubleshooting.

ObjectsMust be enclosed in curly braces {}.
ArraysMust be enclosed in square brackets [].
StringsMust use double quotes. Single quotes are invalid in strict JSON.
Trailing CommasNot allowed. The last item in a list must not have a comma.

Why Software Testers Hub JSON Formatter is a Must-Have

The JSON Formatter by Software Testers Hub is more than just a beautifier. In the fast-paced world of Quality Assurance, testers frequently encounter logs, API responses, and database entries that are "minified" (squashed into a single line to save space). This makes it impossible to read or debug. Our tool restores the hierarchy, making it readable and easy to analyze.

Who is this tool for?

This utility is designed for Manual Testers checking backend responses and Automation Engineers verifying configuration files. If you are practicing your API skills via our JSONPath Evaluator or preparing for technical rounds in our Interview Question Bank, this tool will save you hours of manual debugging.

Fast, Limitless, and Secure

We understand that enterprise security is vital. Unlike other online tools that send your data to a server for processing, our JSON Formatter & Validator runs entirely in your browser. This means your sensitive API keys, tokens, and customer data never leave your computer. Because there is no server-side processing, we offer unlimited usage for our community of 50,000+ monthly users.

Pro Tip: After formatting your data, ensure your logic is correct by using our API Lab or audit your test cases with the Scenario Audit Tool.