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CSV to JSON

Convert CSV into JSON instantly. Supports headers, custom delimiters, and quoted fields. Runs in your browser.

Next step
Format the resulting JSON.JSON Formatter

CSV exports are easy to share, but APIs, scripts, and test fixtures often need JSON. Manual conversion is slow and usually breaks on quotes, delimiters, or uneven columns.

Developer ToolsBrowser-basedOpen full guide

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Help and details

How to use

  1. Paste CSV into the input area.
  2. Choose auto - detect or set the delimiter manually.
  3. Decide whether the first row should be treated as headers.
  4. Copy or download the generated JSON.

Privacy and processing

This tool runs entirely in your browser. Your CSV is never uploaded to our servers.

Frequently Asked Questions

Does this support quoted fields and commas inside quotes?
Yes. Quoted fields are handled correctly, including delimiters inside quoted values.
Is my CSV uploaded to a server?
No. Conversion runs entirely in your browser.
Can I convert CSV without headers?
Yes. If you turn off the header option, the output becomes an array of arrays.
What delimiters are supported?
Auto detect, comma, tab, semicolon, and pipe are supported.
Why do I get an error?
The CSV may contain unclosed quotes or broken row structure. Check the input and delimiter selection.