MakeFileWork

JSON to XML

Turn structured JSON into standards-friendly XML locally. Use @name for attributes and #text for element text.

What this tool actually does

JSON → XML creates a new file in the target format; it does not merely rename the extension. MakeFileWork processes the source in the browser where this conversion supports local execution and keeps the job bounded so a single file cannot consume unlimited memory or CPU.

How the result is verified

Before download, the engine re-serializes, reopens, parses or otherwise checks the output according to the format. The result shows concrete evidence such as pages, structure, extracted text or generated format instead of treating any downloadable blob as a successful conversion.

Limits and fidelity

Formats do not represent every feature in the same way. Layout, fonts, animation, formulas, metadata, transparency or interactive elements can change when the destination cannot preserve them. The tool does not promise fidelity that the target format cannot support and calls out known trade-offs.

When to use this workflow

Use this workflow when another application, device or upload portal requires the target format and you need a newly generated, verifiable file. If the rejection also specifies KB/MB, pixel dimensions or other measurable limits, use the upload-requirement workflow to validate those constraints together.

Privacy and final verification

Keep the original file until the output has been reviewed in the destination application or portal. Supported workflows process locally in the browser and enforce bounded size and complexity limits. For JSON → XML, verify that the generated format preserves the properties that matter for your use case. For important data, compare a representative sample and confirm that format, content and quality meet the actual requirement before replacing the source file. Also open the generated file in the destination application when compatibility, colour, transparency, layout or compression matters.

Predictable mapping

The JSON must contain exactly one root element. Arrays create repeated XML elements, @ keys become attributes and #text becomes element text.

Bounded and defensive

Input is limited to 10 MB, output structure to 100,000 elements and 128 nesting levels. Invalid XML names and non-scalar attribute/text values are rejected.

Need the reverse conversion? Convert XML to JSON.

Numeric and structural fidelity

Unsafe integers, rounded decimals, null values and array roots are rejected rather than silently changed. XML attributes must be scalar and the document must have one valid root element. This conversion does not preserve JSON number types after an XML-to-JSON round trip.

Arrays and empty objects

Only arrays with at least two entries can map to repeated XML elements without losing the array shape. Empty arrays, single-entry arrays, nested arrays, empty objects and mixed text with children are rejected instead of producing a misleading success. XML does not preserve JSON numeric and Boolean types.

Namespace declarations in JSON

Prefixed names such as p:item require an @xmlns:p declaration on the element or an ancestor. Undeclared prefixes, duplicate expanded attribute names and invalid xml or xmlns rebinding are rejected. The generated XML is parsed again before download.

Tabs and line endings inside XML attributes

For example, a JSON attribute value containing a tab, a carriage return or a newline cannot safely be written as a literal XML attribute: XML parsers normalize those characters to spaces. The converter writes numeric character references instead and validates the generated document. Carriage returns inside element text are also encoded to avoid XML line-ending normalization.

Check the XML with the receiving application

Try a record such as {"root":{"@code":"A B","#text":"line 1 line 2"}}. The XML stores the whitespace with character references, not literal control characters. Reopen the result with a standards-compliant XML parser before relying on exact attribute values. XML still cannot retain the original JSON number and Boolean types. For readable XML, use XML formatting; to inspect the reverse mapping, use XML to JSON.