CSV ⇄ JSON ⇄ Excel

Convert between CSV, JSON, TSV and Excel (.xlsx) with automatic delimiter detection, type detection and a table preview.

How to use CSV ⇄ JSON ⇄ Excel

1. Paste data or open a CSV, JSON or Excel file.
2. Choose the output format and options.
3. Copy or download the converted data.

Frequently asked questions

Can I convert Excel to JSON?

Yes. Open an .xlsx file, pick the sheet, and choose JSON as the output.

Are nested JSON objects supported?

Yes. Nested fields are flattened into columns like address.city when converting to CSV or Excel.