JSON to CSV

Convert JSON arrays of objects into clean Comma-Separated Values (CSV) spreadsheets. Automatically detects column headers, handles nested object flattening, and supports custom delimiters (comma, semicolon, tab).

Why Use This Tool?

• Export API Data to Excel: Convert REST API JSON response arrays into CSV files for opening in Microsoft Excel or Google Sheets.
• Database Export Formatting: Export MongoDB or PostgreSQL JSON query results to spreadsheet format.
• Data Cleaning & Analysis: Convert raw JSON log arrays into flat CSV tables.

How to Use

1. Paste a JSON array of objects (e.g. `[{"id": 1, "name": "Alice"}]`).
2. Select Delimiter (Comma `,`, Semicolon `;`, or Tab `\t`).
3. Copy generated CSV text or click "Download .csv File".

Real Working Example

Input:

JSON Array:
[
  { "ID": 101, "Product": "Laptop", "Price": 999 },
  { "ID": 102, "Product": "Mouse", "Price": 25 }
]

Output Result:

CSV Output:
ID,Product,Price
101,Laptop,999
102,Mouse,25

Important Technical Details & Specifications

• PapaParse & Custom CSV Generator: Uses PapaParse engine for RFC 4180 compliant CSV string generation.
• Automatic Column Header Extraction: Collects all unique keys across all JSON objects for complete column headers.
• Local Memory Execution: Zero network overhead.

Related Developer Tools

• Excel to JSON Converter: Convert Excel files to JSON arrays.
• JSON Formatter: Prettify and format JSON.
• CSV Chart Generator: Render interactive charts from CSV.