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CSV ⇄ JSON Converter
Convert between CSV and JSON with duplicate-row removal.
What it does
Convert between CSV and JSON with duplicate-row removal. Part of Data & Business — CSV/JSON cleanup, conversion, and validation.
When to use it
Turn an exported spreadsheet into JSON for an API import, dropping duplicate rows.
Privacy & safety
Rows are processed in memory on your device. Review anonymized previews before exporting anything.
This tool works on text you paste — nothing leaves the page until you copy or save it yourself.
Related tools
- Column Statistics Calculator — Min, max, mean, median, stdev for numbers; top values for text.
- CSV Viewer & Editor — View and edit CSV rows in a table, then download the result.
- Data Anonymizer — Deterministic masking rules with counts. Preview before exporting.