Skip to content
On-device · nothing uploaded

Run SQL on CSV and Excel files

Ask questions of CSV and Excel files with SQL, join files and save the answers. Free, private, nothing uploaded.

How it works, privately

How it works, privately

  1. Choose your CSV or Excel files. You can also drop files on the page. They open in this browser tab; nothing is sent anywhere.
  2. Open your files. Each one becomes a table you can query.
  3. Save the result to your device. Close the tab and nothing is left on any server, because nothing was ever sent.

Questions

Is it free?
Yes. SQL on spreadsheets is free to use, with no account, no sign-up and no daily limit.
Are my files uploaded?
No. SQL on spreadsheets runs inside your browser, on your own device. Your files are never sent to a server, so nobody else can see them.
Does it work on my phone?
Yes. It works in an up-to-date browser on phones, tablets and computers. Very big files are quicker on a computer.
Do I need to install anything?
No. Open the page and use it. You can also add Toolbox to your home screen like an app.