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Text utilities

Remove Duplicate CSV Rows

Remove repeated data rows from CSV while keeping the header and first occurrence.

Text stays in your browserCopy your result

Input workspace

Runs on your device

OUTPUT WORKSPACE

Your result

Let’s calculate.

Use the Calculate button to see your result.

Your content is processed locally.

How to use this tool

  1. Enter csv with a header row.
  2. Select Update result to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Compare complete parsed rows exactly, including capitalization and spaces. Keep the first occurrence.

A WORKED EXAMPLE

The repeated Ava,20 row is removed while Ben,30 remains.

What to keep in mind

Only whole-row duplicates are removed. Different whitespace counts as different content.

Common questions

How does this tool handle my input?

Processing happens in your browser. Your pasted content is not uploaded, included in URLs or stored as a calculation history.

What input should I use?

CSV with a header row: use the example already shown, then replace it with your own content. Only whole-row duplicates are removed. Different whitespace counts as different content.

Methodology maintained by ClarityKit. How these tools are built and checked.