OPTools OP
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CSV to JSON

Convert CSV data to a JSON array in your browser. Auto-detects number types. Supports comma, semicolon, tab, and pipe delimiters. No upload.

Developercsvtojsonconvert🔒 Browser-only

📋 How to use CSV to JSON

  1. 1Paste CSV data (first row = headers) into the input box
  2. 2Choose the delimiter your CSV uses
  3. 3Enable Pretty print for readable JSON
  4. 4Click Convert to JSON and copy the result

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Examples

CSV data to JSON

Input: "name,age\\nAlice,30\\nBob,25"
Output: "[{\"name\":\"Alice\",\"age\":30},{\"name\":\"Bob\",\"age\":25}]"

Frequently Asked Questions

Are numbers detected automatically?▾

Yes — columns containing only numeric values are parsed as numbers in the JSON output.

What about quoted fields with commas?▾

RFC 4180 quoting is supported — fields enclosed in double-quotes are treated as single values even if they contain the delimiter.

Can I go JSON → CSV?▾

Yes — use the same tool in JSON to CSV mode.

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