Converters

CSV to JSON Converter

Paste CSV, get a JSON array of objects — quoted fields, commas, and newlines handled correctly.

Conversion runs locally in your browser. Nothing is uploaded, logged, or stored.

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How to use

  1. Paste your CSV into the input panel — the first row is treated as the header.
  2. Pick the delimiter (comma, semicolon, or tab) if it is not a comma.
  3. Click Convert to get an array of objects keyed by the header names.
  4. Copy or download the JSON result.

How the conversion works

The CSV is parsed with a proper state machine, not a naive split: quoted fields may contain delimiters, escaped quotes (""), and newlines, and CRLF line endings are normalized. Each row after the header becomes one object, with header cells used as keys. Empty header columns are skipped.

All values are kept as strings — CSV carries no type information, so this avoids surprising coercions (a zip code like 01234 stays "01234"). Going the other way? Use the JSON to CSV converter, or convert your CSV to YAML or an HTML table.

Examples

Spreadsheet export to API

Export a sheet as CSV and convert it to JSON for a REST API import or a database seed script.

Data wrangling in code

Turn a CSV report into JSON objects you can filter and map in JavaScript without loading a CSV library.

Frequently Asked Questions

Is my data uploaded anywhere?+
No. Parsing happens entirely in your browser.
Are quoted fields handled?+
Yes. Fields wrapped in quotes may contain delimiters and newlines, and doubled quotes are unescaped to a single quote, per RFC 4180.
Are numbers converted automatically?+
No — every value stays a string so leading zeros and long IDs are preserved exactly. Convert types in your own code where needed.
What about semicolon-delimited files?+
Select Semicolon in the delimiter menu. Tab-separated values (TSV) are supported too.

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