CSV to JSON Converter

Paste your CSV data and instantly get a clean JSON array. First row is used as keys. Works fully in your browser.

Privacy: Your data is processed entirely in your browser and never uploaded to any server.

How to use

  1. Paste your CSV text (e.g. exported from Excel or Google Sheets) into the left box.
  2. Set your delimiter (comma, semicolon, tab, or pipe) and whether the first row is a header.
  3. Click Convert to JSON and copy the result from the right box.

Use cases

  • API development

    Turn exported spreadsheet data into JSON fixtures for API testing.

  • Data migration

    Convert legacy CSV exports to JSON for import into modern databases.

  • Config files

    Convert translation tables or product lists from spreadsheets to JSON configs.