CSV to JSON
Turn spreadsheet exports into API-ready data with this free CSV to JSON converter. Paste CSV or TSV, pick a delimiter, and convert to an array of objects using the header row. Optional dynamic typing promotes numbers and booleans automatically.
PapaParse runs entirely in your browser - handy for customer lists and internal reports you should not upload. After conversion, format the JSON or convert it to YAML for config pipelines.
Input
Paste or type your content here…
Output
Your result will appear here
Frequently Asked Questions
How are column headers mapped?
When “First row is header” is on, each row becomes an object keyed by header names. Turn it off to get arrays of arrays.
Can I convert TSV?
Yes - choose Tab delimiter or Auto-detect for most tab-separated exports from spreadsheets.
Are large CSVs supported?
Browser memory is the limit. Very large files may be slow; keep an eye on the size warning for multi-megabyte pastes.
Does dynamic typing change strings?
When enabled, numeric-looking cells and true/false become JSON numbers/booleans. Disable it to keep everything as strings.