CSV

CSV Header and Column Name Cleaner

Rewrites column names to a consistent naming convention and resolves duplicates.

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How to use this tool

  1. Paste the CSV with its original headers.
  2. Choose the naming convention you want.
  3. Clean the headers and confirm no name changed meaning.

What csv header cleaner does

Headers written for humans rarely survive contact with a database. "Customer Name (legal)" contains spaces, brackets and a mixed case that will need quoting in every query that touches it. Normalising the names once, at the point the file arrives, removes an entire class of downstream friction.

Word boundaries are detected from spaces, punctuation and case changes, so "CustomerName", "Customer Name" and "customer-name" all reduce to the same words before being rejoined in the style you pick. If two headers normalise to the same name, the second gets a numeric suffix rather than silently overwriting the first, which matters because a duplicate column name is one of the harder faults to notice later.

Frequently asked questions

From spaces, punctuation and changes of case. That means CustomerName, Customer Name and customer-name all reduce to the same two words before being rejoined.

The second gets a numeric suffix. Silently overwriting the first would produce a file with a hidden data loss, which is much harder to notice later.

No, only the header row. Every data row is written back unchanged.