Convert JSON to CSV (and Back) Online — No Upload Needed
Developers, analysts and no-code builders switch between JSON and CSV dozens of times a week. Do it instantly in your browser without uploading anything.
Nothing is uploaded — runs entirely in your browserWhy convert JSON to CSV?
JSON is the native language of APIs and modern databases. CSV is the universal format for spreadsheets, email imports and legacy systems. Moving between the two is a daily need for anyone who works with data.
Is my data safe?
Yes. The conversion runs entirely in your browser using JavaScript. Your JSON or CSV never touches a server, never gets logged, and disappears the moment you close the tab. Perfect for sensitive customer or business data.
What can I convert?
Paste an array of objects to get a clean CSV with headers. Paste a CSV to get a formatted JSON array. The tool handles quoted fields, commas inside values, and nested structures gracefully.
Free, instant, and 100% private. No account needed.
Open JSON ↔ CSV Converter →