PrivConvert

Data tool

CSV to JSON

Convert CSV rows into formatted JSON.

Input
Choose a CSV or text file or paste text
Output
JSON files
Limits
1 file · 100 MB max

Processing runs on your device when supported. Network requests may load the app and supporting assets. Privacy details

Add your input

Your file stays in this browser.

Settings

Good to know1 file · 100 MB max
Choose a CSV or text file or paste textResult: JSON files
  • Your file stays in this browser while the tool runs.
  • Large table previews are capped; downloads keep the complete processed output.

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How it works

How to use CSV to JSON online

  1. Choose a CSV file or paste CSV text into the input area.
  2. Choose whether the first row contains headers, then set delimiter, value typing, empty-row, and formatting options.
  3. Run the conversion in your browser, review the JSON, then copy or download the complete result.

Overview

Convert CSV rows to structured JSON in your browser

Parse a CSV file or pasted table into JSON without sending the data to a conversion server. Keep the current object-and-string defaults, or change headers, delimiter detection, value typing, empty-row handling, and indentation for the output you need.

Input

Choose a CSV or text file or paste text

Output

JSON files

Limits

1 file · 100 MB max

Best for

CSV to JSON use cases

  • Turn exported spreadsheet rows into JSON for an API or script.
  • Convert pasted CSV data without creating an account.
  • Copy structured JSON immediately or download the complete result.

Processing

What happens in your browser

PrivConvert uses Papa Parse for this workflow. 5 adjustable settings. No special browser capability is required for typical inputs

Your file stays in this browser while the tool runs.

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FAQ

CSV to JSON questions

See how privacy works

Is CSV to JSON free to use?

Yes. This tool is free to use in your browser and does not require an account.

Is processing local?

CSV to JSON uses Papa Parse in the browser. Selected input is processed on your device when the required browser features are available. Application, library, model, security, and limited analytics requests may use the network.

What limits should I know about?

1 file · 100 MB max. Browser memory and format support also limit the files this tool can process.

Can CSV to JSON detect the delimiter?

Yes. Leave the delimiter set to Auto for detection, or choose comma, semicolon, or tab when you know the file format.

Can CSV to JSON preserve every value as text?

Yes. Number and boolean detection is off by default, so CSV values remain strings unless you enable type detection.