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CSV and Excel tools

Read, convert, merge, split and compare tabular files locally.

What these tools accept

  • CSV or TSV files.
  • CSV or TSV files.
  • XLSX files.
  • CSV or TSV files.
  • JSON files containing an array.
  • XLSX files.
  • Two or more CSV or TSV files.
  • CSV or TSV files.
  • CSV or TSV files.
  • Exactly two CSV or TSV files.

Local processing

  • Every tool on this page runs inside your browser.
  • Your files are not uploaded, and nothing is kept after you close the tab.
  • Each page lists its own size and shape limits.

Choosing a tool

  • Open a tool page to read what it keeps and what it cannot do.
  • Tools that cannot handle a file say so instead of returning a partial result.
  • Each page links to the tools people usually pair with it.

How to use these csv and excel tools

  1. Pick the tool that matches the job you need done.
  2. Add your file, adjust the options the page explains, and run it.
  3. Download the result. Nothing leaves your device at any point.
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