JSON to CSV to XML
Convert between JSON, CSV, and XML formats
Source data
Choose formats, enter data and convert. Your data stays on this device.
Data format converter
JSON: JavaScript Object Notation for structured data.
CSV: Comma-Separated Values for spreadsheet rows. Quoted commas, quotes and line breaks are supported.
XML: eXtensible Markup Language for nested data. Element names must be valid XML names.
Converted data
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- Output size
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About the JSON CSV XML Converter
Our free JSON CSV XML converter converts data between JSON, CSV, and XML, the three structured-data formats most web tools import and export. Turn a JSON array into a CSV spreadsheet, convert an XML feed into a JSON object, or export CSV rows as well-formed XML; every direction converts instantly.
Developers, data analysts, and system integrators regularly face the challenge of bridging incompatible data sources. A REST API returns JSON, a legacy system expects XML, and your reporting tool only reads CSV. Instead of writing throwaway scripts, paste or upload your data into this data format converter and get production-ready output in seconds, complete with proper escaping, pretty printing, and real-time error validation.
Your data is never uploaded, so there is no upload queue and no file-size cap beyond what your device can handle. The converter supports nested objects, arrays, special characters, and RFC 4180-compliant CSV output so the result is ready for immediate use in Excel, Google Sheets, databases, or downstream APIs.
Key Features
- Bidirectional conversion between JSON, CSV, and XML in any combination
- Real-time processing with instant results as you type or paste
- Nested object and array handling for complex JSON & XML structures
- RFC 4180-compliant CSV output with proper quoting and escaping
- Well-formed XML generation with declaration and UTF-8 encoding
- Detailed error messages that pinpoint syntax issues in your input
- One-click copy to clipboard and built-in example data loader
- Swap button to instantly reverse the conversion direction
- Dark mode support for comfortable late-night coding sessions
- Your data is never uploaded or stored
How to Use
- Select input format: Choose JSON, CSV, or XML from the Input Format dropdown.
- Select output format: Pick the target format from the Output Format dropdown.
- Enter or paste data: Type directly into the input area, or click "Load Example" to see a working sample.
- Convert: Click the Convert button (or watch the real-time preview) to generate the output instantly.
- Copy or use the result: Click "Copy" to copy the converted data to your clipboard, then paste it wherever you need it.
- Reverse direction: Use the swap button to flip input and output formats and continue converting in the opposite direction.
Use Cases
- API response transformation: Convert a JSON API response to CSV for quick spreadsheet analysis or XML for SOAP-based integrations.
- Database migration: Export database records as CSV, then convert to JSON or XML for import into another system.
- Data analysis prep: Turn XML data feeds into CSV files that load directly into Excel, Google Sheets, or Pandas.
- ETL pipelines: Quickly prototype format conversions before implementing them in production ETL workflows.
- Legacy system integration: Bridge modern JSON APIs with older XML-based services without writing custom middleware.
- Educational projects: Students can compare how the same dataset looks in JSON, CSV, and XML to understand each format's strengths.
- Configuration file conversion: Transform configuration data between formats supported by different platforms and frameworks.
- Report generation: Convert structured data into CSV for spreadsheet-based reporting or XML for document generation.
Frequently Asked Questions
Can I convert nested JSON to CSV?
Yes. The converter flattens nested objects and arrays into CSV columns. For deeply nested structures, the tool serializes child objects as JSON strings within each cell.
Does the tool handle special characters?
Yes. CSV output follows RFC 4180 rules, properly quoting fields that contain commas, double quotes, or newlines. XML output escapes reserved characters like &, <, and >.
What is the maximum file size I can convert?
There is no fixed limit; it depends on your device's available memory. Most modern devices handle files of several megabytes without issues.
Tips & Best Practices
- Validate first: Use the error messages to fix syntax issues in your source data before converting to another format.
- Use the example data: Click "Load Example" to see the expected input structure for each format before pasting your own data.
- Flatten before CSV: For the cleanest CSV output, ensure your JSON data is an array of flat objects with consistent keys.
- Check XML root names: When converting to XML, the default root element is <root>. Rename it in the output if your target system requires a specific tag name.
- Copy, don't retype: Always copy the output using the Copy button to avoid transcription errors.
- Swap for round-trip testing: Use the swap button to convert back and forth, verifying that data survives the round trip without loss.