100% Client-Side

JSON to CSV Converter

Free online JSON to CSV converter. Convert JSON arrays to CSV format with proper escaping. Download as .csv file. — runs 100% in your browser, client-side only. No data is sent to any server. Free to use, no account required.

Free Client-Side No Login No Storage
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How to Use the JSON to CSV Converter

  1. Paste a JSON array of objects.
  2. Click Convert to CSV.
  3. Copy or download the CSV output.

Automatically extracts all unique keys as column headers. Handles special characters, commas, and quotes in values.

What is JSON to CSV Converter?

JSON to CSV conversion transforms JSON arrays of objects into comma-separated value format. Object keys become CSV headers, and values become row data, creating spreadsheet-compatible output.

Why Use This Tool

CSV is the universal format for spreadsheets and data import. Converting JSON to CSV enables opening API data in Excel, importing into databases, or sharing with non-technical users.

When to Use It

Use JSON to CSV when exporting API data to spreadsheets, creating reports from JSON sources, importing data into legacy systems, or preparing data for analysis tools.

Common Uses

  • Exporting API data to Excel
  • Creating reports from JSON sources
  • Importing data into databases

Frequently Asked Questions

What JSON structure works best?

An array of objects with consistent keys. [{"name":"Alice","age":30}, {"name":"Bob","age":25}] converts cleanly. Nested objects are flattened or stringified.

How are nested objects handled?

Nested objects can be flattened (parent.child) or converted to JSON strings. Deep nesting may require preprocessing for clean CSV output.

What about arrays in values?

Array values are typically converted to delimited strings (comma-separated) or JSON strings within the CSV cell.