XML ⇄ JSON Converter — About

Dive into the attribute mapping, numeric precision safeguards, and best practices for turning XML into JSON and back again.

Key points

Why the tool exists

Teams juggle XML APIs, configuration manifests, and JSON-first tooling. This converter bridges the formats with reproducible share links and built-in guidance.

Privacy-first design

Everything runs in the browser. Files, pasted payloads, and share-link states remain local, so sensitive integration data never touches a server.

Predictable structure

The converter follows fast-xml-parser conventions for attributes, text, and CDATA nodes, making it easier to map results into downstream code.

The XML ⇄ JSON converter focuses on clarity for developers navigating mixed-format ecosystems. Rather than trusting opaque online pastes, you get a transparent conversion pipeline, analytics hooks for event tracking, and copy optimized for AI-driven search.

Core capabilities

Attribute- and text-aware parsing with safe number handling for long identifiers.
Shareable URLs that encode both panes so code reviewers land on the same state instantly.
Drag-and-drop import for XML or JSON files with zero server round-trips.
Accessible controls with keyboard focus states and status messaging for screen readers.

Performance profile

Under typical loads the converter responds in a few hundred milliseconds thanks to fast-xml-parser and debounced URL updates. Even sizable API responses remain responsive, though multi-megabyte documents still benefit from desktop tooling.

Roadmap callouts

Future updates may expose toggleable attribute prefixes, richer schema validations, and diffing against previous share links. Feedback from your integrations will shape which enhancements ship first.

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How to use this tool

Step 1
What the tool does
Transforms XML into JSON with attribute and text metadata while offering the reverse conversion using fast-xml-parser under the hood.
Step 2
How to use it effectively
Pick the direction, paste a payload, run Convert, then Beautify or edit either pane. Share links encode both panes via Base64 URL-safe strings.
Step 3
Limitations and best practices
Arrays are inferred from repeated XML nodes, and attribute prefixes stay in place. Review structure before feeding it into strict schemas or validators.

Frequently asked questions

When should I reach for CLI tooling instead?: The browser tool shines for quick payload inspections, documentation updates, and small batch conversions. Use CLI utilities for streaming gigabyte-scale XML or automated nightly jobs.
Can I customize the attribute prefix?: The interface uses the default @_ prefix. For bespoke pipelines you can copy the JSON output and post-process it, or fork the helper logic to match your conventions.
Does the converter preserve whitespace?: Beautify normalizes indentation, but raw conversion preserves textual content. Whitespace inside text nodes remains unless you edit it manually.

Attribute and text metadata rely on the @_ and #text keys. If downstream consumers need a different shape, run a quick transform or build a mapper around the provided helper utilities.