ConvertCove

JSON file format

JavaScript Object Notation. The lingua franca of web APIs: nested objects and arrays in plain text.

or drop files here · processed on your device, never uploaded

    What is a JSON file?

    JSON (JavaScript Object Notation) was popularised by Douglas Crockford in the early 2000s and standardised as ECMA-404 and RFC 8259. It represents objects, arrays, strings, numbers, booleans and null in a compact text syntax.

    JSON is the default format for web APIs and many configuration files. Converting it to CSV or Excel requires flattening nested structures, and ConvertCove does that automatically using dotted column names.

    Extensions.json
    MIME typeapplication/json
    StructureNested objects and arrays
    StandardRFC 8259, ECMA-404
    CommentsNot allowed

    Convert JSON to…

    Every conversion listed works in the converter above: add a JSON file and pick the target format.

    Convert to JSON from…

    CSV, XML, YAML, XLSX

    Detailed guides: CSV to JSON · JSON to CSV · JSON to YAML

    Part of the data & documents converter · all formats.