JSON Formatter
Paste raw JSON to instantly format, validate, and pretty-print it, free and no signup required.
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Paste raw JSON to instantly format, validate, and pretty-print it, free and no signup required.
Powered by AIVEXA
The JSON Formatter/Validator takes raw or minified JSON and pretty-prints it with proper indentation, making nested objects and arrays readable at a glance, while also validating the syntax and pointing out exactly where a missing comma, bracket or quote is breaking the structure.
JSON (JavaScript Object Notation) is the standard data format for APIs, config files and app-to-app data exchange, and even a single misplaced comma will make an entire payload fail to parse — this tool catches those syntax errors instantly instead of you having to debug them inside your code editor or terminal.
Trailing commas after the last item in an array or object, unescaped quotes inside strings, and missing closing brackets are the most frequent JSON errors — all of which this validator flags immediately with a clear error location.
No, formatting and validation run entirely in your browser using JavaScript's built-in JSON parser — your data, including any sensitive API responses or config values, is never transmitted anywhere.
Most AIVEXA tools run entirely in your browser (client-side), which means your files and inputs are processed on your own device and are not uploaded to a server.
Yes — it works on any modern browser (desktop, Android or iOS) without installing an app, and it's free to use with no signup or watermark.
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