tools / clean, compare & lookup

Combine Columns

Join two or more columns into one with any separator — e.g. First + Last name.

About Combine Columns

Join columns like First Name and Last Name, or Street, City and ZIP, into a single column. Choose the order, the separator and whether to skip blanks.

How to use Combine Columns

  1. Drop your spreadsheet.
  2. Click the columns in the order you want them joined and choose a separator.
  3. Click “Combine columns” and download.

Limitations

  • Everything runs in your browser’s memory, so the practical file size depends on your device. As a rough guide: up to ~50 MB or ~500,000 rows works well on a modern laptop; phones and tablets handle much less.
  • Very large files can make the tab slow or crash. If that happens, split the file first or use a desktop computer.
  • Outputs keep values and formulas’ results but not formatting, charts, images, pivot tables or macros.

See all limitations

Frequently asked questions

Can I control the order?

Yes, the order you click columns is the order they are joined.

Can I use a line break as separator?

Yes, choose “New line”.

Are the original columns kept?

By default yes; tick “Remove original columns” to drop them.

Disclaimer: Excel Tools by gumber.ai is a hobby project and is completely free to use. It is provided “as is”, without warranty of any kind. Always double-check results before relying on them, and keep a copy of your original files.

Related tools