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CSV merger and joiner

Stack several CSV files or join them on a matching column.

  • Free
  • No sign-up
  • Works on any device

About CSV merger and joiner

Combine several CSV files either by stacking rows, when they share the same columns, or by joining on a matching column such as an ID or email, like a VLOOKUP. Check that the headers match before stacking, otherwise values land in the wrong columns.

How to use CSV merger and joiner

  1. Set the options above. The result updates live.
  2. Change anything until it's just right.
  3. Copy the result or download it.

Why use this tool?

Also known as

Frequently asked questions

What is the difference between stacking and joining?

Stacking appends rows from files with the same columns. Joining adds columns by matching a key value, like a customer ID, across files.

Is CSV merger and joiner free?

Yes. CSV merger and joiner on Toolipedia is free to use, with no sign-up and no watermark.

Is it safe to use?

Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.

Does it work on my phone?

Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.

Do I need an account?

No. Just open the page and use the tool. There's no sign-up and no email needed.

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