JSON Toolbox

Local Processing

JSON to XML

Convert JSON objects to XML with a customizable root element name.

All-in-one JSON processing

From formatting and validation to conversion and export — 10 essential tools in one page. No install, no sign-up, ready to use.

Format & minify

Beautify with indentation or compress to a single line. Customizable indent size for reading or production.

Syntax validation

Detect JSON syntax errors with precise line/column numbers. Catch trailing commas, quote issues, and more.

Diff comparison

Side-by-side comparison of two JSON documents with highlighted additions, deletions, and changes.

Tree viewer

Browse complex JSON in a collapsible tree. Copy paths to quickly locate nested fields.

Format conversion

JSON ↔ YAML, JSON → XML, JSON → CSV / Excel — for config authoring and data export.

JSONPath

Debug JSONPath expressions online. Extract nested fields with one-click templates.

Who uses it? Common scenarios

Built for anyone who works with JSON daily — debugging, configuration, testing, and data export.

Frontend developers
  • Debug API responses and format log JSON
  • Extract nested values with JSONPath
  • Compare frontend/backend data structures
Backend developers
  • Validate incoming JSON payloads
  • Convert between JSON and YAML configs
  • Review API version structure changes
QA engineers
  • Diff API response payloads
  • Export test data to Excel
  • Convert and validate message formats
DevOps
  • Author K8s and docker-compose configs
  • Convert between JSON and YAML
  • Minify configs to reduce transfer size

Get started in 3 steps

Everything runs locally in your browser. Paste JSON and see results instantly — nothing is uploaded.

  1. 1

    Choose a tool

    Pick the feature you need from the top navigation — format, validate, diff, convert, and more.

  2. 2

    Paste or type JSON

    Paste JSON into the input area, or click Load sample to try each feature instantly.

  3. 3

    View results & export

    Results appear in real time on the right. Copy or download — all processing stays local.

Privacy firstClient-side architecture — JSON is parsed and processed only on your device. No upload, no storage, no tracking.

Transform JSON data into XML format with a customizable root element name. Useful for integrating with legacy systems, SOAP APIs, and XML-based configuration pipelines.

How to use

  1. 1 Paste your JSON object into the input area.
  2. 2 Set the root element name (default: root).
  3. 3 Click Convert and copy or download the XML output.

Usage examples

Simple object to XML

{"book":{"title":"Example","year":2024}}

Nested catalog

{"catalog":{"product":{"id":"P1","price":19.99}}}

Why JSON Toolbox

  • Customizable XML root element
  • Handles nested objects and arrays
  • Client-side conversion — no data upload
  • Pair with YAML converter for multi-format workflows

Frequently asked questions

How do I convert JSON to XML?

Paste a JSON object, set your preferred root element name, and click Convert to generate valid XML.

How are JSON arrays converted to XML?

Array items are repeated under their key name, following common JSON-to-XML mapping conventions.

Is this tool free?

Yes. JSON Toolbox is completely free with no sign-up, no usage limits, and no hidden fees.

Is my JSON data safe? Is it uploaded to a server?

Your data never leaves your browser. All parsing, formatting, and conversion runs locally on your device — nothing is sent to any server.

Which browsers are supported?

All modern browsers including Chrome, Firefox, Safari, and Edge. No plugins or extensions required.

What is the maximum file size?

Files over 2 MB may feel slow; files over 10 MB are blocked. For very large payloads, use a local CLI tool instead.

Does it support JSON5, comments, or trailing commas?

Only standard JSON (RFC 8259) is supported. JSON5 features like comments and trailing commas are not accepted.

Continue exploring

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Further reading