Free Online CSV to JSON

CSV-to-JSON conversion parses a CSV table — first row as headers — into a JSON array of objects, one per row.

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How to Use This Developer Tool

  1. Paste CSV content into the input area — the first row should be headers.
  2. Select the delimiter (auto-detect, comma, tab, or semicolon).
  3. Read the JSON array in the output panel.
  4. Click Copy to send the JSON to your clipboard.

What Is a CSV to JSON?

Spreadsheets export to CSV; APIs and databases consume JSON. The clean cases are mechanical, but the interesting ones involve fields containing the delimiter, fields containing the line separator, and fields containing the quote character itself. CSV solves these with quoted strings and doubled internal quotes — the parser has to honour all of that.

This converter follows RFC 4180 strictly: fields are split on the chosen delimiter (comma, tab, or semicolon), quoted fields preserve internal commas and newlines, and doubled quotes inside a quoted field decode to a single quote. Output is a JSON array of objects ready to drop into a fetch mock, a database seed, or another tool's input.

Frequently Asked Questions

How does CSV to JSON conversion work?
The first row of your CSV becomes the keys for each object. Each subsequent row becomes a JSON object. The result is an array of objects.
Does it handle quoted values?
Yes, the converter properly handles CSV values that contain commas, quotes, and newlines. Standard CSV escaping rules are supported.
Can I change the delimiter?
Yes — you can switch the delimiter between comma, tab and semicolon to handle TSV files and European-style CSV.

Published by the WeGotEveryTool team. We build and test every tool in-house and update pages when the underlying spec, formula, or recommendation changes.

Reviewed: May 2026. Disclaimer: this tool is provided as-is for general informational use. For decisions with material consequences (medical, legal, financial, security) verify results against a qualified professional source.

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