Online tools to convert popular data formats. Persist your session for later, share with co-workers.


As a developer, format conversion is something I sometimes have to do. I often look online for solutions and tools finding they only cover partly my needs.

CSVJSON is a do-it-myself and more permanent solution. Its best feature? You can save your session for later, and share it with a co-worker.

If you find bugs or would like an improvement, please leave a comment below.

I hope it can be useful to you. Happy conversions!


Change Log


Added a new converter: JSON to CSV.

New button to report a bug or ask for improvements.


Support escaped quotes in SQL to JSON: GitHub issue #26. Thank you lbottoni for reporting.


SQL to JSON parsing bug fix. Convert NULL to null.

Added a minify option to compact JSON by removing spaces and new lines. Fix for GitHub Issue #21. Thank you Myat Min Soe for requesting this feature.


SQL to JSON parsing bug fix. Do not split when detecting a comma in a string value: GitHub Issue #25.


Abimbola Idowu added single quote option. GitHub issue #23


SQL to JSON parsing bug fix: GitHub Issue #22.


CSV to JSON improvement: GitHub Issue #13 - Added option to parse number values or not to retain original number formatting.


JSON Beautifier bug fix and improvement: GitHub Issue #12 - Inline short arrays bug fix and improvement. Added nesting depth option.


SQL to JSON bug fix: GitHub Issue #11 - support multile values in single-line INSERT INTO statement.


JSON Beautifier bug fix: Inline short arrays was not working properly. GitHub issue #9


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


CSV to JSON bug fix: strings containing quotes and commas were prematurely cut.


Make the Github repository public again. Re-opened to community.


Added options to CSV to JSON:

  • Transpose: You can now transpose the csv data before conversion.
  • Output object instead of array: By default an array of objects is output. You can now output an object or hash. The first column becomes the hash key.

Bugs and Feature Requests

Code available on Github. Report bugs or ask for improvements either through Github issues or by leaving a Disqus comment.