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CSV Tools — Convert, Split & Analyse Data

Format, validate and convert CSV data to JSON

Options

CSV Content

Ctrl/⌘+S or Ctrl/⌘+Enter to run

Features

  • CSV → JSON
  • Validation
  • Copy result
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This tool runs on your device — your files and inputs never go anywhere.

How to Use CSV Tools

Format, validate and convert CSV data to JSON No signup, and nothing gets uploaded for most use.

  1. 1

    Paste your text, URL, or value into the input field.

  2. 2

    Select the options you want to apply.

  3. 3

    Run the tool to see results instantly.

  4. 4

    Copy or download the output.

Why you might like it

  • Nothing to upload — the work happens on your device.
  • Free with no signup, no watermarks, and no daily limits.
  • Works in any modern browser on any device — nothing to install.
  • Usually done in a few seconds, so it doesn't get in your way.
Try CSV Tools

Frequently Asked Questions

What can I do with CSV data here?▾

Convert CSV to JSON, transpose columns, sort rows, filter, deduplicate and preview large files - common data-cleaning tasks without opening a spreadsheet app.

How are quoted fields handled?▾

Standard RFC 4180 rules apply: commas inside quotes, escaped quotes and multi-line cells parse correctly, so exports from Excel or Google Sheets behave predictably.

Is my data sent anywhere?▾

No. Parsing and conversion happen entirely in your browser - safe for customer lists and other sensitive exports.

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