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JSON to XML, XML to JSON, CSV Converter — Smart Format Auto-Detection

SnipLint Smart Converter is a free online tool that automatically detects whether your input is JSON, XML, or CSV and shows you only the relevant conversion options. No manual format selection. Paste your data and click the conversion you need — it works in your browser with no data sent to a server unless you choose to share.

Supported Conversions

JSON → XML

Convert JSON objects and arrays to well-formed XML elements.

XML → JSON

Transform XML elements and attributes into structured JSON.

CSV → JSON

Turn comma-separated rows into a JSON array of objects.

JSON → CSV

Flatten a JSON array into comma-separated rows with headers.

CSV → XML

Convert tabular CSV data into a records/record XML structure.

XML → CSV

Extract repeating XML records into tabular CSV format.

Smart Features

  • Auto format detection — identifies JSON, XML, or CSV as you type
  • Dynamic conversion buttons — only valid target formats are shown
  • Error analysis — specific descriptions with line/column references for malformed input
  • Auto-Fix — repairs trailing commas in JSON and unclosed tags in XML
  • Format-aware Beautify — reformats in the detected language with one click
  • Share via QR or ID — send converted output across devices in seconds
  • File upload — load .json, .xml, or .csv files directly into the editor

Frequently Asked Questions

How do I convert JSON to XML online?
Paste your JSON into the input panel. The format is detected automatically and a "→ XML" button appears in the center. Click it to convert — no manual format selection needed.
What format pairs are supported?
JSON → XML, XML → JSON, CSV → JSON, JSON → CSV, CSV → XML, XML → CSV. All six conversion directions are supported in a single page.
How does auto-detection work?
The converter checks whether your input starts with { or [ (JSON), < (XML), or contains consistent comma-separated rows (CSV). Detection runs client-side with no server call, updating as you type with a 300ms debounce.
Why is my JSON showing an error?
The error panel shows specific issues — trailing commas, missing colons, unclosed brackets — with plain-English descriptions and fix suggestions. Click "Auto-Fix" to repair common JSON or XML issues automatically.
Is conversion processed on the server?
No. All conversion and format detection runs entirely in your browser using fast-xml-parser and native JSON parsing. Data only reaches the server if you click "Send to Server" to share the output via ID or QR code.
What happened to the individual JSON to XML, XML to JSON pages?
They are now redirected to /converter. All six conversion tools are unified in the Smart Converter with automatic format detection, so you no longer need to navigate to the right page manually.

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