CSV to JSON Converter

Parse CSV files and spreadsheets into structured JSON arrays of objects.

About this tool

Turn spreadsheet exports and CSV data into ready-to-use JSON for your web apps and APIs.

How to use this tool

  1. Paste CSV content
  2. Click Run
  3. Copy generated JSON

How it works

Parses CSV rows, reads header keys, and constructs typed JavaScript object arrays.

When to use this tool

  • Importing spreadsheet data into MongoDB or PostgreSQL
  • Seeding database tables

Frequently asked questions

Does it auto-detect numbers?

Yes, numeric strings and booleans are parsed into native JSON types.

Limitations

CSV must contain a header row as the first line.

Privacy

No data leaves your device.