Converter · 100% Local
JSON to CSV
Converter
Paste a JSON array or drop a .json file. Get a clean CSV ready for Excel or Sheets — all inside your browser. No upload, no server, nothing leaves your device.
JSON Input
◈ Drop a .json file anywhere on this panel · Ctrl+Enter to convert
CSV Output
Ready — paste JSON and click Convert
Nothing leaves your browser
Your JSON data is processed entirely in-browser. No file is sent to any server. Works fully offline once the page is loaded.
Handles flat JSON arrays
Input must be a JSON array of objects — the most common API response format. Keys from the first object become CSV column headers.
Opens directly in Excel
The output CSV is clean and ready to open in Excel, Google Sheets, or any spreadsheet tool. Choose your delimiter.