CSV and JSON Converter

Convert between CSV and JSON formats.

Convert files in either direction, flatten nested keys and specify delimiters. Files are processed locally and never uploaded.

Help and tutorial

CSV input
JSON output
No CSV loaded

The CSV and JSON Converter processes everything locally in your browser.
Nothing is uploaded or stored.

Working with multiple files?

Merge, match and clean data across many files directly in Google Sheets with Flookup Data Wrangler.

Try Flookup Data Wrangler