Utilshub

Data tool / CSV

CSV to JSON

Turn spreadsheet-style CSV rows into clean JSON objects without uploading the data.

100% processed in your browser

CSV input

121 chars

JSON result

Convert CSV rows

The first row becomes JSON field names.

How to use it

  1. 1 Paste CSV data or open a local CSV file.
  2. 2 Detect the delimiter automatically or choose one.
  3. 3 Preview the rows, then copy or download JSON.

Useful for

  • Turning spreadsheet exports into API-friendly JSON
  • Inspecting CSV records as structured objects
  • Preparing local data for development workflows

Good to know

  • The first row is always used as field names.
  • Blank and duplicate field names are renamed safely.
  • Files larger than 10 MB are rejected to protect browser performance.