JSON to CSV Converter
Convert JSON arrays into CSV format instantly. Perfect for importing JSON data into Excel, Google Sheets, or any spreadsheet application.
How to Use
- Paste a JSON array — Paste a JSON array of objects into the input panel. Each object will become a CSV row.
- Click Convert — The tool extracts all unique keys as column headers and converts each object to a row.
- Copy or download — Copy the CSV output and paste it into Excel, Google Sheets, or save it as a .csv file.
Key Features
- Automatic column header detection from all unique object keys
- Proper CSV escaping for commas, quotes, and newlines in values
- Handles missing keys gracefully — empty cells for absent fields
- Nested objects and arrays are serialized as JSON strings in cells
Use Cases
- Exporting API data to spreadsheets for analysis or reporting
- Converting JSON database exports to CSV for import into other tools
- Creating CSV datasets from JSON log files
Frequently Asked Questions
What JSON structure works best for CSV?
An array of objects with consistent keys works best. Each object becomes a row, and each key becomes a column header.
How are nested objects handled?
Nested objects and arrays are serialized as JSON strings within the CSV cell.
What if objects have different keys?
All unique keys across all objects are collected as headers. Objects missing a key will have an empty cell for that column.
Can I convert a single JSON object (not an array)?
Yes. A single object is treated as a one-row table, with keys as headers and values as the single data row.
Are nested objects flattened in the CSV?
Nested objects and arrays are serialized as JSON strings within CSV cells. For flat structures, each key becomes a clean CSV column.