CSV tool

Join two CSV files by a key

Combine two exports by matching a shared ID, email, SKU or other key — a browser alternative to a quick VLOOKUP or SQL join.

No content uploadNo account
Drop left CSVor click to choose
Drop right CSVor click to choose

What this tool does

Join CSV adds columns from one table to another based on a shared key. You can choose a left, inner or full join depending on which unmatched rows should remain.

Common uses

  • Add lookup data to an export
  • Combine CRM, inventory or registration tables
  • Reconcile two datasets without creating spreadsheet formulas

How it works

Load both files, select a key present on both sides and choose the join type. Review the combined table before export.