Turnkey CSV ImporterInstalls in minutes


To get started, upload or paste your data from Excel (saved as CSV or TSV).

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Embed all the functionality of csvjson in any web application with Flatfile. Auto-match columns, validate data fields, and provide an intuitive CSV import experience.

More Details

  • This function is available as a npm package
  • CSV stands for Comma Separated Values. Often used as an interchange data format to represent table records, one per line. CSV is plain text.
  • The CSV format is documented in an RFC memo RFC-4180.
  • The first line is often the header, or column names. Each subsequent row is a record and should have the same number of fields.
  • Fields containing the separator character, line breaks and double-quotes must be enclosed inside double quotes ".
  • Other separator are often used like tabs \tor semi-colons ;. TSV or Tab Separated Values is used to store table data in Clipboards. When data is copied from Excel for example, it is stored as TSV in the Clipboard.
  • With CSVJSON you can parse values as numbers or JSON. Turn on respective Parse Numbers and Parse JSON switches to convert valid numbers and JSON (null, false, true, [] and {}).
  • With CSVJSON you can transpose the csv before conversion. Rows become columns, and columns become rows.
  • With CSVJSON you can output a hash (or object) instead of an array. In that case, the hash key will be the first column.

Mar 20, 2019

Bug fix: Detect duplicate column headers and make them unique. GitHub issue #71.

Feb 2, 2019

Refactored and published npm package csv2json. Fix for GitHub issue #70.

Jan 26, 2019

Improvement: Removed 64k limit on download button. Also fixed issue #68 'Cannot work functional with special letters'.

Mar 31, 2018

Improvement: Added option to parse JSON values.

Dec 18, 2017

Improvement: Added option to minify or compact JSON. GitHub issue #21

Oct 7, 2016

Improvement: Added option to parse number values or not to retain original number formatting. GitHub issue #13

Jul 09, 2016

Fixed bug : If no text is present in a csv field, it was assigned 0 (zero) by default.

Jun 20, 2016

Bug fix: strings containing quotes and commas were prematurely cut.

Dec 30, 2015

Bug fix: drop quotes on keys of nested objects.

Nov 26, 2015

Improvement: Added options to transpose and output object instead of array.

Jan 30, 2014

Bug fix: Pasting Excel data into Textarea would cause an upload.

Jan 12, 2014

Initial release.