JSON to CSV Converter

What is JSON to CSV Converter?

This JSON to CSV converter turns JSON array data into CSV table format. Input: a JSON array like [{"name":"A","age":30}]. Output: CSV text with the first row as headers (extracted from object keys) followed by data rows. Built for data analysis, Excel import, data migration, and organizing API results. All processing happens locally — your data is never uploaded.

▶Use Cases5 scenarios
  • ◆Converting API responses for Excel
  • ◆Format conversion before analysis
  • ◆Data migration
  • ◆Bulk data processing
  • ◆Report building
▶How to Use5 steps
  1. 1Open the JSON to CSV converter
  2. 2Paste a JSON array into the input box
  3. 3Click Convert
  4. 4Preview the generated CSV table
  5. 5Copy or download the CSV file
▶Features8 features
  • ✓Completely free
  • ✓No signup
  • ✓Auto header extraction
  • ✓Error feedback
  • ✓Instant conversion
  • ✓One-click copy
  • ✓CSV download
  • ✓Runs in your browser
▶FAQ9 questions
What is the JSON to CSV converter?

A free online tool that converts JSON arrays into CSV tables, auto-extracting object keys as headers — suitable for Excel and analysis.

What JSON format does it accept?

JSON arrays like [{"name":"A","age":30}]. Arrays of objects are the most common input.

How are nested objects handled?

Nested objects are flattened into key paths (e.g., user.name) as headers, keeping the data traceable.

Is my data uploaded?

No. Conversion happens entirely in your browser. Nothing is sent to a server.

How large a JSON can it handle?

Arrays with tens of thousands of rows convert in 1-2 seconds.

Can I open the CSV in Excel?

Yes. Open the CSV directly in Excel or use Data → From Text/CSV to import it.

What about special characters in values?

Values containing commas, quotes, or newlines are automatically wrapped in double quotes per RFC 4180. Internal quotes are escaped as double-double-quotes ("").

Can I choose a different delimiter?

The default delimiter is comma. For tab-separated output, use the TSV format option. Semicolon delimiter is available for European Excel compatibility.

Is my JSON data uploaded?

No. Conversion happens entirely in your browser using JavaScript. Nothing is sent to any server.