Beautify, validate, and debug your JSON in seconds. Our tool works 100% in your browser to keep your data private.
Whether you are debugging an API response, cleaning a dataset, or learning data structures, working with clean JSON is non-negotiable. A single misplaced comma can invalidate an entire file. Our JSON Formatter & Validator is engineered to eliminate this frustration, providing instant, accurate, and easy-to-understand results that streamline your workflow.
Raw, unformatted JSON is a nightmare to read and even harder to debug. Our tool solves this by "pretty-printing" your data—adding perfect indentation and line breaks to reveal its logical structure. This visual clarity makes it effortless to spot errors, understand data nesting, and trace relationships between different data points. It transforms chaos into order.
Your privacy is our top priority. This JSON Formatter & Validator operates entirely on the client-side. All formatting and validation happens on your computer, inside your browser. We do not see, log, or transmit your JSON data. Use this tool with complete confidence, knowing your sensitive information remains private.
Our tool is 100% secure because all formatting and validation happens directly in your browser (client-side). Your data is never sent to our servers, ensuring your privacy is completely protected.
JSON Linting is the process of analyzing JSON code to find and flag syntactical errors. Our validator acts as a JSON linter, identifying issues like missing commas, mismatched brackets, or incorrect data types so you can fix them quickly.
The most common JSON errors include missing commas between elements, trailing commas after the last element, using single quotes instead of double quotes for keys and string values, and having mismatched curly braces {} or square brackets [].
JSON (JavaScript Object Notation) is a lightweight, human-readable data format based on key-value pairs. XML (Extensible Markup Language) is a markup language with a more verbose syntax using tags. JSON is generally preferred for web APIs due to its simplicity and efficiency.
Formatting (or "pretty-printing") your JSON adds proper indentation and line breaks, making it easy for humans to read and understand the hierarchical structure of the data. This is crucial for debugging and data analysis.