Convert JSON to CSV and CSV to JSON instantly — pick a delimiter, copy or download. Everything runs in your browser.
🔒 Your data is converted on your device — nothing is uploaded.
JSON → CSV for spreadsheets, and CSV → JSON for APIs and code.
Handles quoted fields, commas in values, and detects numbers and booleans.
No uploads — perfect for sensitive exports and datasets.
Paste a JSON array of objects — the CSV appears instantly with a header row from the keys. Choose comma, semicolon or tab as the delimiter.
Yes — switch to CSV → JSON, paste CSV with a header row, and get a clean JSON array. Numbers and true/false are auto-detected.
No. Everything happens in your browser, so your data never leaves your device.