100% FREE · NO ADS

Convert JSON
to CSV instantly.

// paste json · get csv · done. no signup, no limits.

⚡ Client-side only 🔒 Zero data sent 📋 Nested JSON support Works offline
Delimiter
Flatten
Custom key sep
Headers
JSON Input
CSV Output
Rows
Columns
Output size
Convert time
🔒

Your data never leaves your device. Everything runs in your browser — no server, no uploads, no storage. Even if you go offline, this tool works.

How it works

// 01

Paste or drop JSON

Arrays of objects, nested structures — we handle it. Drag & drop a .json file or paste directly.

// 02

Choose options

Pick your delimiter, toggle header row, flatten nested objects with a custom separator.

// 03

Convert & download

Instant conversion. Copy to clipboard or download a clean .csv file in one click.