CSV to JSON Converter
Convert CSV files to JSON format — all in your browser. No uploads. No servers. No subscriptions.
100% In-Browser — Your Data Never Leaves Your Device
Need More?
CSV to JSON Pro — unlimited conversions, batch processing, and more — $12 one-time, no subscription.
Get CSV to JSON Pro — $12
Features
- 100% client-side — data never leaves your browser
- Drag & drop or click to upload
- Live JSON preview with collapsible panel
- Instant download as .json file
- No signup, no account, no tracking
- Supports CSV with or without headers
- Dark mode via prefers-color-scheme
FAQ
Is my data safe? Yes. Everything runs in your browser. No files are uploaded to any server.
Do I need to sign up? No. Just open the page and start converting.
What CSV formats are supported? Any standard CSV with or without headers. Empty lines are skipped.
Is there a file size limit? No hard limit, but very large files (>50MB) may slow down older browsers.