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Convert a CSV or Excel file

On-device

Convert between CSV, TSV, XLSX and JSON

Convert a CSV, TSV, XLSX or JSON file to any of the other formats, right on your device — pick a sheet from multi-sheet Excel files and preview it before converting. Nothing is uploaded.

Not sure which CSV tool you need? See all six →

About this tool

What you provide

  • One CSV, TSV, XLSX or JSON file, up to 25 MB.
  • The output format: CSV, TSV, XLSX or JSON.
  • For a multi-sheet Excel file, the sheet to convert.

What you get

  • The converted file, downloaded to your device.
  • A preview of the table before you convert.

Limits

  • One file at a time, up to 25 MB, because the conversion runs in your device's memory.
  • Converts one sheet at a time; with a multi-sheet Excel file you pick the sheet yourself.
  • Every cell is carried across as text, so numbers and dates arrive as text rather than as typed values.

How to use it

  1. Choose a file

    Tap "Choose a file to convert" or drop a CSV, TSV, XLSX or JSON file onto the dashed area.

  2. Pick the sheet

    If the file holds more than one sheet, a "Sheet" menu appears — select the sheet you want to convert.

  3. Set the output format

    Open the "Convert to" menu and choose CSV, TSV, XLSX or JSON.

  4. Convert and download

    Check the preview of the first rows, then tap "Convert & download" to save the converted file.

Frequently asked questions

How do I convert a CSV file to JSON?

Upload your file to the Convert CSV tool and choose JSON as the output — it converts between CSV, TSV, XLSX and JSON in any direction.

Can I convert a TSV file to XLSX?

Yes — the tool converts between CSV, TSV, XLSX and JSON, so TSV to XLSX is one of the supported conversions.

Does converting my file send it to a server?

No, the conversion happens locally on your device, so your file is never uploaded.