JSON to XML Converter
Convert JSON payloads into structured, well-formed XML with configurable root tags and attributes.
Quick Answer & Understanding Your Result
A JSON to XML Converter translates JSON (JavaScript Object Notation) data into well-formed W3C XML markup with configurable root wrappers and attribute mapping in 0ms.
Core Conversion Capabilities
- Attribute Mapping (`@_`): Automatically transforms keys prefixed with
@_into native XML attributes (e.g."@_id": "101"→<user id="101">). - Root Element Wrapping: Wraps multiple root properties or raw JSON arrays inside a designated root container tag (e.g.
<root>or<items>). - 1-Click Syntax Auto-Fix: Automatically detects and repairs common JSON syntax errors like missing colons, single quotes, and trailing commas.
- XML Declaration Support: Generates standard
<?xml version="1.0" encoding="UTF-8"?>prolog headers.
Enterprise & API Integration Applications
- SOAP & Enterprise Web Services: Converting modern REST JSON payloads into legacy SOAP/WSDL XML envelopes.
- RSS & Sitemap Feeds: Building XML sitemaps and podcast feeds from structured JSON database queries.
Enter your JSON payload above to generate clean XML markup instantly.
Formula & Calculation Logic
Technical Specification & ASTParses JSON AST into memory objects and serializes into well-formed XML conforming to W3C Extensible Markup Language 1.0 specifications.
Step-by-Step Guide
Paste JSON Document
Paste your raw JSON API response, database records, or payload into the editor.
Configure XML Options
Specify the root tag name, indentation width, and toggle the XML header declaration.
Real-Time Conversion
The engine translates JSON keys into XML tags and validates well-formedness in 0ms.
1-Click Copy XML
Copy clean XML markup to integrate with SOAP web services, Android manifests, or RSS feeds.
Worked Examples Table
| Example | Input Values | Calculated Result | Explanation |
|---|---|---|---|
| Convert User Object with Attribute | JSON object converted to an XML element with an inline 'id' attribute. | ||
| Products Array | Provides instant quantitative evaluation for comparative practical analysis. |
Frequently Asked Questions
Evidence-Based Methodology & Authoritative References
W3C Extensible Markup Language (XML) 1.0 (Fifth Edition)
IETF RFC 8259 - The JavaScript Object Notation (JSON) Data Interchange Format
MDN Web Docs - XML Introduction & Standards
Standard: ISO / W3C / IETF Authoritative Domain Standard
Formula: XML Markup = XMLBuilder.build(JSON.parse(JsonString), attributePrefix: '@_', indent: IndentSize )
Last Reviewed: August 21, 2026
Primary Source: W3C Extensible Markup Language (XML) 1.0 (Fifth Edition)
Reference Document: IETF RFC 8259 - The JavaScript Object Notation (JSON) Data Interchange Format
Computation Privacy: 100% client-side 0ms computation, zero data retention
All algorithms, formatters, and data conversions run 100% locally in your browser following official technical standards (RFC, ISO, W3C). Output should be verified prior to mission-critical production deployment.
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Calculated results are modeled based on standard scientific and mathematical formulas. Please verify with domain-specific technical documentation for specialized applications.