CSV to JSON · Browser-only
CSV to JSON Converter Online Free
Turn CSV or TSV text into JSON without uploading your data. Useful for spreadsheet exports, small datasets and quick web workflows.
Private in your browserNo signupNo watermarkFree
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How to use it
- Open the document converter.
- Upload a CSV/TSV file or paste the data.
- Review the detected text.
- Choose JSON as output.
- Convert and download the JSON file.
Good to know
- Very irregular CSV files may need manual cleanup first.
- Huge datasets can be slow in a browser.
FAQ
Can I convert TSV too?
Yes. TSV input is supported and can be exported to JSON.
Is my spreadsheet data uploaded?
No. The conversion happens locally in your browser.
Can I clean the data first?
Yes. You can edit the text before generating JSON.