How to use this tool
Paste a header row and up to 5,000 data rows. Select the separator. Quoted fields support embedded separators, doubled quotes and line breaks. Headers must be non-empty and unique, and every row must match their width. Values remain strings; the tool does not guess numbers, dates, booleans or nulls.
Try these values
code,count followed by 0012,5 becomes [{"code":"0012","count":"5"}]. The leading zeros are retained.
Common questions
Does my input leave this page?
The tool processes its input in your browser. It does not send the text to our server for calculation. If advertising is enabled, third-party ad scripts also run on the page; use a trusted offline tool for secrets.
Can I use the result in my project?
Yes. Check the example and limitations first, and test the output with the system that will consume it.
Something doesn’t add up? Report an issue · Methods & corrections