JSON to CSV Converter
Convert JSON arrays to CSV with headers in your browser.
JSON input
Paste a JSON array. Objects become CSV rows; non-object items become empty rows. Limit: 1 MB.
CSV output
When to use JSON to CSV Converter
Common ways to use JSON to CSV Converter:
- Export API JSON to a spreadsheet
Convert arrays of API objects into CSV you can open in Excel, Numbers, or Google Sheets.
- Validate JSON before sharing data
Catch malformed JSON or non-array input before sending a CSV export to teammates.
- Debug changing data shapes
See which keys appear across mixed JSON objects and how they become CSV columns.
- Copy clean CSV into tickets or docs
Generate valid escaped CSV and copy it directly into documentation, issue trackers, or chat.
- Convert data on mobile
Use the same browser-only workflow on a phone or tablet without installing extra software.
JSON to CSV Converter FAQ
- How do I convert JSON to CSV?
- Paste a valid JSON array into the input field. The app reads object keys, builds a header row, and updates the CSV output automatically.
- What JSON shape do I need?
- The top-level value must be an array. Objects become rows; primitive values and nested arrays in the top-level array still create blank rows as specified.
- How are CSV headers chosen?
- Headers are the union of object keys found across the array, kept in first-seen order so later rows can add new columns.
- Does the converter handle commas and quotes?
- Yes. Values containing commas, quotes, or line breaks are quoted, and internal quotes are doubled to create valid CSV.
- Does this app store my data?
- No. Conversion runs in your browser. Clipboard actions occur only when you use Paste or Copy.
JSON to CSV Converter Help
How to use
- Paste a JSON array into the input panel.
- The converter updates automatically and creates a header row from every object key it finds.
- Review the CSV output, then use Copy or Clear as needed.
Tips
- The first-seen order of object keys controls the CSV header order.
- Missing values are exported as empty cells, and nested values are serialized as JSON text.
- Cells with commas, quotes, or line breaks are quoted and escaped for valid CSV.
Troubleshooting
- If you see an error, make sure the input is valid JSON and the top-level value is an array.
- Inputs larger than 1 MB are rejected to keep the browser responsive.
- If Paste or Copy fails, use your browser keyboard shortcuts to paste or copy manually.
Privacy and browser behavior
- Conversion happens locally in your browser; this tool does not upload your JSON or CSV to a server.
- Paste and Copy use your clipboard only when you click those buttons.
- AppDoesIt pages may fetch shared locale files and remember site-level preferences such as theme, favorites, and cookie consent in this browser.