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CSV to JSON — Free Online, No Upload Needed

Convert CSV to JSON with header detection, delimiter choice and preview.

Data & DevFreeNo upload

Open the interactive csv to json tool — free, runs in your browser.

About this csv to json

Turn spreadsheet exports into JSON for APIs, JavaScript apps or MongoDB imports. Handles quoted commas, custom delimiters and header rows correctly via proper CSV parsing.

How to use

  1. Upload a CSV or paste its contents.
  2. Set delimiter and header options.
  3. Click Convert and download the JSON.

CSV to JSON FAQ

Does it handle quoted commas?

Yes, via PapaParse with proper CSV parsing.

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