Format, validate, and beautify JSON code. Identify errors and debug API responses instantly.
JSON (JavaScript Object Notation) is a lightweight data format used for APIs, configuration files, and data exchange. Unformatted JSON is hard to read and debug. Formatting (beautifying) JSON makes it human-readable by adding proper indentation and line breaks. This tool also validates your JSON to catch syntax errors like missing commas or quotes.
The most common JSON errors are missing quotes around keys, trailing commas, and mismatched brackets. This tool will tell you exactly where the error is. Always use double quotes (not single quotes) for strings in JSON. Numbers, booleans (true/false), and null don't need quotes. Arrays use square brackets, objects use curly braces.