JSON Formatter & Validator
Beautify or minify JSON with error detection — 100% browser-based.
Beautify or minify JSON with error detection — 100% browser-based.
The JSON Formatter & Validator takes minified or messy JSON — the kind APIs return as one unreadable line — and pretty-prints it with proper indentation, while also checking for syntax errors like missing commas, unmatched brackets, trailing commas, or unquoted keys, which are the most common reasons a JSON payload fails to parse.
This is a everyday tool for developers debugging an API response, inspecting a config file, or checking that hand-written JSON is valid before using it in code. When the JSON is invalid, the validator points to roughly where the syntax broke, rather than leaving you to scan hundreds of characters manually.
Trailing commas (a comma after the last item in an array or object) and unquoted or single-quoted keys are the two most frequent errors — valid JSON requires double quotes around all keys and no comma after the final element.
No, formatting only adds or removes whitespace and line breaks for readability — the underlying keys, values, arrays and objects are unchanged. Minifying (removing whitespace) is the same operation in reverse, useful for reducing payload size before sending over a network.
This tool checks that your JSON is syntactically valid (correctly formed JSON), not that it matches a custom JSON Schema definition — schema validation checks specific field types and required properties, which is a separate, more specialized kind of validation.
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.
Cart khaali hai
Koi product add karein